Erigeron canadensis (Horseweed)

PhylumCladeCladeCladeOrderFamilySubfamilySupertribeTribeGenus
AngiospermaeMesangiospermaeEudicotyledoneaeAsteridsAsteralesAsteraceaeAsteroideaeAsterodaeAstereaeErigeron
Erigeron canadensis Flower
Erigeron canadensis Fruit
Erigeron canadensis Leaf
Erigeron canadensis Plant
Erigeron canadensis Bud
HiRes Images

General Information

Sightings:211
Type(s):annual, flowering plant, plant

Trail List

  • Santa Barbara
    • Gaviota
      • Woodland Trail
    • Paradise Rd
      • Aliso Loop
      • Camuesa Canyon FRd
      • Paradise Rd.
      • Santa Cruz Trail (Upper Oso)
    • Riparian
      • Aliso Creek
      • Cold Spring Creek
      • San Roque Creek
      • Santa Ynez River
      • UCSB lagoon
      • Upper San Roque Creek
    • SB Back Country
      • CS Mono
      • Gibraltar Back Rd.
      • Little Caliente FRd.
    • SB Front Country
      • Arroyo Burro Trail
      • CS Alt Side Trail 1
      • CS West Entrance
      • Cold Fire
      • Cold Spring Above Powerlines
      • Cold Spring Below Powerlines
      • Cold Spring Mid Fork
      • Cold Spring Ridge Trail
      • Franklin FRd
      • Franklin Trail
      • Girard Trail
      • Hot Spring New Trail
      • Inspiration FRd.
      • Jesusita
      • Jesusita Tunnel
      • McMenemy Trail
      • Powerline
      • Rattlesnake
      • Razerback Ridge
      • Romero Rd.
      • San Ysidro Trail Above Falls
      • Tunnel Trail
      • Tunnel paved
    • Seaside
      • Carp bluffs
      • Pacific - GB2Bakara
      • Plover Reserve- Coal Oil Point
    • Urban
      • Beachway
      • Calle Real
      • Cliff Dr.
      • Coast Village Roundabout
      • Gibraltar Rd.
      • Los Positas
      • More Mesa
      • More Mesa East Trail
      • More Mesa Lower
      • More Mesa Main Loop
      • Mountain Dr.
      • San Roque Rd.
      • UCSB bikepath
    • unspecified
      • 101 SB
      • Hot Springs Creek
      • Mibek Rd
      • Rattlesnake Trail
      • Romero Back Trail
      • UCSB Labyrinth
  • Ventura
    • unspecified
      • Ca 1 North of Emma Wood
      • Emma Woods Beach Loop
      • Emma Woods Bikepath
      • FR 5N13 Ranch
      • US101
      • US101 bikepath

Sightings Table

DateLatLonAltitudeTemperatureHumidityTrail
2018-11-10 10:36:0034.5079-119.384148m. (488ft.)22°C (72°F)22%FR 5N13 Ranch
2018-10-11 08:21:5434.4061-119.73915m. (50ft.)17°C (63°F)17%Los Positas
2018-10-07 07:31:0934.4562-119.651102m. (336ft.)18°C (64°F)18%Cold Spring Ridge Trail
2018-10-06 09:00:5734.4669-119.73278m. (257ft.)20°C (68°F)20%San Roque Creek
2018-09-30 08:13:3234.4562-119.651111m. (366ft.)16°C (61°F)16%Cold Spring Ridge Trail
2018-09-27 08:21:1734.4058-119.7393m. (10ft.)20°C (68°F)20%Los Positas
2018-09-25 08:18:3534.4728-119.593211m. (694ft.)21°C (70°F)21%Romero Rd.
2018-09-20 08:10:0534.4187-119.79611m. (37ft.)18°C (64°F)18%More Mesa
2018-09-18 07:26:1534.464-119.689105m. (347ft.)14°C (57°F)14%Rattlesnake
2018-09-16 10:27:0734.5292-119.63138m. (453ft.)25°C (77°F)25%CS Mono
2018-09-16 10:03:3634.5216-119.628135m. (446ft.)18°C (64°F)18%CS Mono
2018-09-16 09:41:3934.5199-119.631136m. (446ft.)18°C (64°F)18%CS Mono
2018-09-16 09:22:5634.5131-119.63136m. (448ft.)18°C (64°F)18%CS Mono
2018-09-16 07:11:2034.456-119.651111m. (365ft.)19°C (66°F)19%CS Alt Side Trail 1
2018-09-13 07:24:0334.4187-119.89m. (31ft.)14°C (57°F)14%More Mesa
2018-09-13 07:17:0634.4183-119.79812m. (39ft.)13°C (55°F)13%More Mesa
2018-09-11 11:12:5434.471-119.698166m. (546ft.)20°C (68°F)20%Powerline
2018-09-11 10:20:1934.4781-119.68268m. (879ft.)21°C (70°F)21%Gibraltar Rd.
2018-09-11 09:27:5934.4852-119.702255m. (838ft.)29°C (84°F)29%Tunnel Trail
2018-09-06 11:08:3334.4539-119.628108m. (355ft.)18°C (64°F)18%Girard Trail
2018-09-06 11:03:3734.453-119.63193m. (308ft.)21°C (70°F)21%McMenemy Trail
2018-09-06 10:35:2834.4529-119.64277m. (255ft.)19°C (66°F)19%Hot Springs Creek
2018-09-04 08:24:0834.4648-119.598249m. (819ft.)22°C (72°F)22%Romero Rd.
2018-09-04 07:19:2434.4555-119.591120m. (396ft.)16°C (61°F)16%Romero Rd.
2018-09-02 09:57:1234.512-119.629135m. (443ft.)24°C (75°F)24%Santa Ynez River
2018-09-02 07:17:2934.4562-119.651102m. (335ft.)18°C (64°F)18%Cold Spring Ridge Trail
2018-08-21 10:54:5234.5689-119.757137m. (452ft.)25°C (77°F)25%Santa Cruz Trail (Upper Oso)
2018-08-21 10:38:0734.5644-119.767122m. (400ft.)23°C (73°F)23%Camuesa Canyon FRd
2018-08-19 13:03:3734.4578-119.65489m. (292ft.)26°C (79°F)26%Cold Spring Creek
2018-08-19 07:37:5134.4561-119.651100m. (330ft.)16°C (61°F)16%Cold Spring Ridge Trail
2018-08-16 09:28:1134.4536-119.629103m. (339ft.)25°C (77°F)25%Girard Trail
2018-08-16 08:22:0934.4532-119.64272m. (237ft.)21°C (70°F)21%Hot Spring New Trail
2018-08-12 12:43:3034.4647-119.598255m. (838ft.)25°C (77°F)25%Romero Rd.
2018-08-05 11:05:0534.4573-119.65382m. (272ft.)26°C (79°F)26%Cold Spring Below Powerlines
2017-12-05 10:37:5034.5606-119.77116m. (382ft.)16°C (61°F)16%Camuesa Canyon FRd
2017-10-28 08:24:4934.4762-119.724135m. (444ft.)23°C (73°F)23%Jesusita
2017-10-14 08:24:4534.4762-119.724120m. (396ft.)19°C (66°F)19%Jesusita
2017-10-08 12:48:0134.3844-119.48716m. (52ft.)24°C (75°F)24%Carp bluffs
2017-10-08 12:23:3434.3505-119.4240m. (1ft.)21°C (70°F)21%US101 bikepath
2017-10-08 12:13:2034.3253-119.3961m. (6ft.)22°C (72°F)22%Ca 1 North of Emma Wood
2017-10-08 11:59:0734.3109-119.3571m. (6ft.)22°C (72°F)22%Ca 1 North of Emma Wood
2017-10-08 11:54:4734.3069-119.3521m. (5ft.)22°C (72°F)22%Emma Woods Bikepath
2017-10-08 11:45:1634.287-119.3282m. (9ft.)22°C (72°F)22%Emma Woods Bikepath
2017-10-08 09:44:1134.2799-119.3153m. (10ft.)25°C (77°F)25%Emma Woods Beach Loop
2017-10-08 08:52:2234.2828-119.31519m. (65ft.)16°C (61°F)16%US101
2017-10-07 07:35:4334.4753-119.721147m. (484ft.)22°C (72°F)22%Jesusita
2017-09-28 08:01:3034.4184-119.812m. (41ft.)21°C (70°F)21%More Mesa
2017-09-28 08:00:4234.4186-119.79913m. (45ft.)20°C (68°F)20%More Mesa
2017-09-28 07:51:3034.4213-119.787N/A17°C (63°F)17%More Mesa
2017-09-24 07:27:0034.4357-119.502130m. (427ft.)15°C (59°F)15%Franklin FRd
2017-09-24 06:51:1534.4241-119.50968m. (225ft.)15°C (59°F)15%Franklin FRd
2017-09-24 06:40:2034.4192-119.51229m. (98ft.)14°C (57°F)14%Franklin Trail
2017-09-24 06:35:4034.4169-119.51313m. (43ft.)12°C (54°F)12%Franklin Trail
2017-09-23 13:05:4834.4944-120.23957m. (190ft.)25°C (77°F)25%Woodland Trail
2017-09-19 11:24:0734.5128-119.631134m. (442ft.)23°C (73°F)23%Santa Ynez River
2017-09-19 10:02:0834.5344-119.626142m. (467ft.)23°C (73°F)23%Little Caliente FRd.
2017-09-19 09:53:2534.5291-119.629136m. (446ft.)19°C (66°F)19%CS Mono
2017-09-19 09:18:4534.5199-119.631136m. (446ft.)20°C (68°F)20%CS Mono
2017-09-17 11:38:2034.4721-119.705148m. (488ft.)23°C (73°F)23%Tunnel Trail
2017-09-16 08:36:2534.4762-119.724127m. (417ft.)18°C (64°F)18%Jesusita
2017-09-16 08:31:0934.4753-119.721139m. (458ft.)16°C (61°F)16%Jesusita
2017-09-16 08:26:0334.4736-119.718154m. (506ft.)19°C (66°F)19%Inspiration FRd.
2017-09-09 08:37:0134.4757-119.726109m. (358ft.)22°C (72°F)22%Jesusita
2017-09-09 08:03:4634.4754-119.721134m. (442ft.)19°C (66°F)19%Jesusita
2017-09-05 11:46:00N/AN/AN/AN/AN/ACalle Real
2017-09-05 06:54:5534.4649-119.73585m. (279ft.)21°C (70°F)21%Mibek Rd
2017-09-02 06:59:5634.4731-119.709146m. (481ft.)33°C (91°F)33%Jesusita Tunnel
2017-08-29 08:18:4034.4594-119.649134m. (442ft.)30°C (86°F)30%Cold Spring Ridge Trail
2017-08-17 08:11:4534.4185-119.7986m. (20ft.)20°C (68°F)20%More Mesa
2017-08-17 08:10:4534.4188-119.7976m. (20ft.)19°C (66°F)19%More Mesa
2017-08-17 08:03:0034.4201-119.7876m. (22ft.)22°C (72°F)22%More Mesa East Trail
2017-08-17 08:02:0134.4203-119.7877m. (23ft.)20°C (68°F)20%More Mesa East Trail
2017-08-15 10:52:5134.5012-119.672213m. (699ft.)20°C (68°F)20%Gibraltar Back Rd.
2017-08-11 10:56:5034.406-119.84510m. (33ft.)N/AN/AUCSB lagoon
2017-08-11 10:42:0334.4069-119.84810m. (35ft.)N/AN/AUCSB Labyrinth
2017-08-11 10:34:5134.4062-119.84610m. (34ft.)N/AN/AUCSB lagoon
2017-08-11 10:32:4634.4066-119.8457m. (24ft.)N/AN/AUCSB lagoon
2017-08-11 10:20:3134.4162-119.8368m. (26ft.)N/AN/APacific - GB2Bakara
2017-08-08 11:46:0834.4281-119.73221m. (71ft.)N/AN/ACalle Real
2017-08-03 09:52:3434.4283-119.73218m. (61ft.)N/AN/ACalle Real
2017-08-03 07:54:0334.4729-119.708133m. (436ft.)N/AN/AJesusita Tunnel
2017-08-02 00:00:0034.4274-119.73110m. (35ft.)N/AN/ACalle Real
2016-12-13 12:30:4634.4984-119.748227m. (745ft.)N/AN/AArroyo Burro Trail
2016-12-03 00:00:0034.4724-119.72985m. (280ft.)N/AN/AJesusita
2016-10-09 09:13:4934.4287-119.73217m. (56ft.)N/AN/ALos Positas
2016-09-13 12:53:4934.4563-119.65111m. (364ft.)N/AN/ACold Spring Ridge Trail
2016-09-12 12:37:5634.4061-119.8465m. (17ft.)N/AN/AUCSB lagoon
2016-09-05 00:00:0034.4269-119.73315m. (52ft.)N/AN/ALos Positas
2016-09-01 11:14:4534.4553-119.67576m. (250ft.)N/AN/AMountain Dr.
2016-08-18 06:11:3334.4653-119.712103m. (339ft.)N/AN/ATunnel paved
2016-08-10 07:36:5334.4238-119.79710m. (33ft.)N/AN/AMore Mesa Lower
2016-08-10 06:46:1634.4268-119.73422m. (75ft.)N/AN/ALos Positas
2016-07-31 09:35:4734.4282-119.732-6m. (-21ft.)N/AN/A101 SB
2016-07-28 07:48:4934.4749-119.659194m. (637ft.)N/AN/ACold Spring Mid Fork
2016-07-19 08:49:2334.5433-119.81581m. (269ft.)N/AN/AParadise Rd.
2016-07-16 09:38:5134.4283-119.7325m. (18ft.)N/AN/ACalle Real
2016-05-28 09:06:1334.4856-119.746165m. (543ft.)N/AN/AArroyo Burro Trail
2016-02-03 13:22:3134.4572-119.65458m. (191ft.)N/AN/ACS West Entrance
2015-11-22 10:16:3434.4549-119.6757m. (188ft.)N/AN/AMountain Dr.
2015-11-10 11:15:4334.4538-119.66467m. (223ft.)N/AN/AMountain Dr.
2015-10-25 10:59:3334.4771-119.63251m. (824ft.)N/AN/ASan Ysidro Trail Above Falls
2015-10-21 15:40:0134.4725-119.72977m. (255ft.)N/AN/AJesusita
2015-10-13 07:51:0534.4724-119.72973m. (240ft.)N/AN/AUpper San Roque Creek
2015-10-02 18:04:1134.4188-119.8-4m. (-15ft.)N/AN/AMore Mesa Main Loop
2015-10-01 00:00:00N/AN/AN/AN/AN/AJesusita
2015-09-24 08:18:3234.4724-119.72979m. (261ft.)N/AN/AUpper San Roque Creek
2015-09-24 07:04:1234.4524-119.7330m. (100ft.)N/AN/ASan Roque Rd.
2015-09-17 10:02:3234.4724-119.72972m. (239ft.)N/AN/AJesusita
2015-09-17 09:55:0734.4758-119.724119m. (392ft.)N/AN/AJesusita
2015-09-17 09:50:4534.4749-119.72128m. (422ft.)N/AN/AJesusita
2015-09-17 09:19:5734.4726-119.718146m. (481ft.)N/AN/AJesusita
2015-09-08 06:59:5234.4564-119.65198m. (322ft.)N/AN/ACold Spring Below Powerlines
2015-09-04 09:50:1234.4075-119.74-6m. (-20ft.)N/AN/ALos Positas
2015-09-04 08:31:3134.4188-119.80m. (3ft.)N/AN/AMore Mesa Main Loop
2015-09-03 09:03:4434.4748-119.72128m. (422ft.)N/AN/AJesusita
2015-09-01 00:00:00N/AN/AN/AN/AN/ACliff Dr.
2015-08-21 12:58:0234.4209-119.7415m. (52ft.)N/AN/ALos Positas
2015-08-20 06:59:5534.4688-119.73184m. (277ft.)N/AN/AJesusita
2015-08-20 06:40:3034.4749-119.72151m. (496ft.)N/AN/AJesusita
2015-08-16 06:51:5634.4552-119.589126m. (414ft.)N/AN/ARomero Rd.
2015-08-13 07:49:4534.4192-119.80214m. (47ft.)N/AN/AMore Mesa
2015-08-13 07:36:0134.421-119.78716m. (54ft.)N/AN/AMore Mesa
2015-08-06 13:53:3734.4187-119.8310m. (35ft.)N/AN/AUCSB bikepath
2015-08-02 11:05:5634.4644-119.644190m. (623ft.)N/AN/ACold Spring Above Powerlines
2015-08-02 10:10:1034.4538-119.68379m. (262ft.)N/AN/AMountain Dr.
2015-08-01 00:00:0034.414-119.6850m. (2ft.)N/AN/ABeachway
2015-07-30 08:42:1734.4724-119.72985m. (280ft.)N/AN/AUpper San Roque Creek
2015-07-28 17:51:4434.4277-119.7327m. (91ft.)N/AN/ACalle Real
2015-07-28 12:41:5334.4772-119.63259m. (851ft.)N/AN/ASan Ysidro Trail Above Falls
2015-07-23 09:00:3434.4725-119.72988m. (288ft.)N/AN/AJesusita
2015-07-11 06:48:3134.415-119.8857m. (25ft.)N/AN/APlover Reserve- Coal Oil Point
2015-06-30 07:34:1434.4668-119.7192m. (304ft.)N/AN/ATunnel paved
2015-06-18 08:44:3534.4744-119.72789m. (292ft.)N/AN/AUpper San Roque Creek
2015-01-02 12:23:3334.4189-119.51229m. (95ft.)N/AN/AFranklin Trail
2014-10-30 17:09:3834.5458-119.78891m. (301ft.)N/AN/AAliso Creek
2014-10-30 15:58:3534.5526-119.786100m. (331ft.)N/AN/AAliso Creek
2014-10-30 15:30:3934.5506-119.782147m. (483ft.)N/AN/AAliso Loop
2014-10-14 08:48:5134.5221-119.627141m. (465ft.)N/AN/ACS Mono
2014-10-09 00:00:00N/AN/AN/AN/AN/AJesusita
2014-10-02 08:38:4334.4769-119.724131m. (431ft.)N/AN/AUpper San Roque Creek
2014-09-30 08:29:4634.4701-119.586194m. (639ft.)N/AN/ARomero Rd.
2014-09-25 00:00:00N/AN/AN/AN/AN/AJesusita
2014-09-23 11:42:5134.4544-119.72949m. (161ft.)N/AN/AJesusita
2014-09-23 11:05:5534.4784-119.742144m. (475ft.)N/AN/AArroyo Burro Trail
2014-09-11 08:04:5634.4757-119.725122m. (401ft.)N/AN/AJesusita
2014-09-11 07:29:2634.4755-119.722137m. (449ft.)N/AN/AJesusita
2014-09-11 07:08:2734.4669-119.73366m. (216ft.)N/AN/AJesusita
2014-09-09 00:00:00N/AN/AN/AN/AN/AMountain Dr.
2014-08-28 00:00:00N/AN/AN/AN/AN/AJesusita
2014-08-24 08:15:5634.4754-119.721141m. (464ft.)N/AN/AJesusita
2014-08-04 00:00:00N/AN/AN/AN/AN/ACoast Village Roundabout
2014-07-24 00:00:00N/AN/AN/AN/AN/AJesusita
2014-07-17 00:00:00N/AN/AN/AN/AN/AJesusita
2014-07-01 00:00:00N/AN/AN/AN/AN/ACoast Village Roundabout
2014-06-23 00:00:00N/AN/AN/AN/AN/ACoast Village Roundabout
2014-06-07 00:00:00N/AN/AN/AN/AN/AAliso Loop
2014-05-29 00:00:00N/AN/AN/AN/AN/AJesusita
2014-05-01 00:00:00N/AN/AN/AN/AN/AJesusita
2014-04-10 00:00:00N/AN/AN/AN/AN/AJesusita
2014-04-08 00:00:00N/AN/AN/AN/AN/AMountain Dr.
2013-11-03 00:00:00N/AN/AN/AN/AN/ARomero Rd.
2013-10-03 00:00:00N/AN/AN/AN/AN/AJesusita
2013-09-19 00:00:00N/AN/AN/AN/AN/AJesusita
2013-09-10 00:00:00N/AN/AN/AN/AN/AMountain Dr.
2013-09-02 00:00:00N/AN/AN/AN/AN/AMore Mesa
2013-08-24 00:00:00N/AN/AN/AN/AN/ACold Fire
2013-08-18 00:00:00N/AN/AN/AN/AN/ARomero Rd.
2013-08-15 00:00:00N/AN/AN/AN/AN/AJesusita
2013-08-13 00:00:00N/AN/AN/AN/AN/ACold Fire
2013-08-03 07:43:0034.4649-119.644204m. (670ft.)N/AN/ACold Fire
2013-08-01 00:00:00N/AN/AN/AN/AN/AJesusita
2013-08-01 00:00:00N/AN/AN/AN/AN/AJesusita
2013-07-27 14:24:27N/AN/AN/AN/AN/AMountain Dr.
2013-07-27 10:38:07N/AN/AN/AN/AN/AMountain Dr.
2013-07-27 09:33:1834.4648-119.643207m. (681ft.)N/AN/ACold Fire
2013-07-27 09:32:5734.4649-119.643208m. (683ft.)N/AN/ACold Fire
2013-02-17 00:00:00N/AN/AN/AN/AN/AJesusita
2013-02-05 00:00:00N/AN/AN/AN/AN/AJesusita
2012-12-06 00:00:00N/AN/AN/AN/AN/AJesusita
2012-11-27 00:00:00N/AN/AN/AN/AN/AJesusita
2012-11-04 00:00:00N/AN/AN/AN/AN/AJesusita
2012-09-11 00:00:00N/AN/AN/AN/AN/ATunnel Trail
2012-08-23 00:00:00N/AN/AN/AN/AN/AJesusita
2012-08-16 00:00:00N/AN/AN/AN/AN/AJesusita
2012-06-17 00:00:00N/AN/AN/AN/AN/AJesusita
2012-06-11 00:00:00N/AN/AN/AN/AN/ALos Positas
2012-06-10 00:00:00N/AN/AN/AN/AN/AJesusita
2012-06-07 00:00:00N/AN/AN/AN/AN/AJesusita
2012-05-28 18:47:52N/AN/AN/AN/AN/AJesusita
2012-05-20 12:16:00N/AN/AN/AN/AN/AJesusita
2012-05-13 13:04:00N/AN/AN/AN/AN/ARomero Back Trail
2012-05-02 00:00:00N/AN/AN/AN/AN/AJesusita
2012-03-08 00:00:00N/AN/AN/AN/AN/AJesusita Tunnel
2012-02-11 00:00:00N/AN/AN/AN/AN/AJesusita
2011-12-31 00:00:00N/AN/AN/AN/AN/AN/A
2011-10-02 16:09:12N/AN/AN/AN/AN/AMore Mesa
2011-10-02 16:08:46N/AN/AN/AN/AN/AMore Mesa
2011-10-02 16:08:18N/AN/AN/AN/AN/AMore Mesa
2011-09-18 13:54:25N/AN/AN/AN/AN/AMore Mesa
2011-09-18 13:47:49N/AN/AN/AN/AN/AMore Mesa
2011-09-18 13:47:23N/AN/AN/AN/AN/AMore Mesa
2011-09-18 13:47:03N/AN/AN/AN/AN/AMore Mesa
2011-09-18 13:46:51N/AN/AN/AN/AN/AMore Mesa
2011-09-18 13:46:34N/AN/AN/AN/AN/AMore Mesa
2011-09-18 13:46:06N/AN/AN/AN/AN/AMore Mesa
2011-01-23 14:34:23N/AN/AN/AN/AN/ARazerback Ridge
2011-01-23 14:33:57N/AN/AN/AN/AN/ARazerback Ridge
2011-01-23 00:00:00N/AN/AN/AN/AN/ARattlesnake Trail
2010-12-31 00:00:00N/AN/AN/AN/AN/AN/A
2010-09-09 09:56:12N/AN/AN/AN/AN/AJesusita
2010-09-09 09:55:54N/AN/AN/AN/AN/AJesusita

Seen with...