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About

Ambrosia psilostachya (Western ragweed)

CladeCladeCladeOrderFamilySubfamilySupertribeTribeSubtribeGenus
MesangiospermaeEudicotyledoneaeAsteridsAsteralesAsteraceaeAsteroideaeHelianthodaeHeliantheaeAmbrosiinaeAmbrosia
Ambrosia psilostachya Flower
Ambrosia psilostachya Fruit
Ambrosia psilostachya Leaf
Ambrosia psilostachya Shoot
Ambrosia psilostachya Plant
Ambrosia psilostachya Bud
HiRes Images

General Information

Sightings:154
Type(s):perennial, flowering plant, plant

Trail List

  • Santa Barbara
    • Paradise Rd
      • 19 Oaks Camp Trail
      • 19 Oaks Trail
      • 5N16
      • 5N18
      • Old Mine Trail
      • Oso Horsetrail
      • Paradise Rd.
      • Santa Cruz Creek Trail
      • Santa Cruz Trail (Upper Oso)
      • Santa Ynez River Trail
    • Riparian
      • Blue Escondito Creek
      • Santa Ynez River
      • UCSB lagoon
    • SB Back Country
      • Arroyo Burro Back Rd.
      • Blue Canyon Trail Cot2Camuesa
      • CS Mono
      • Cottam Meadow
      • Gibraltar Back Rd.
    • SB Front Country
      • BV<->Romero Fireroad
      • CS<->SY Fireroad
      • San Antonio Creek Trail
      • Tunnel paved
    • Seaside
      • Carp. Salt Marsh Trail
      • Goleta slough
      • Plover Reserve- Coal Oil Point
      • Pond Trail- Coal Oil Point
    • Summit
      • Camino Cielo
    • Urban
      • 154
      • 192
      • Calle Real
      • Cliff Dr.
      • Elings Park
      • Lake Los Carneros
      • Los Carneros Rd.
      • Los Positas
      • Maria Ygnacio bikepath
      • More Mesa
      • More Mesa Main Loop
      • Mountain Dr.
      • Old San Marcos Rd.
      • Painted Cave Rd.
      • SB Airport
      • San Roque Rd.
      • UCSB bikepath
      • Wilcox restoration
    • unspecified
      • UCSB Labyrinth
  • Ventura
    • unspecified
      • Emma Woods Beach Loop
      • Emma Woods Picnic Area
      • Serrano Valley Trail

Sightings Table

DateLatLonAltitudeTemperatureHumidityTrail
2018-10-11 07:32:5634.4204-119.7999m. (31ft.)16°C (61°F)16%More Mesa
2018-10-11 07:23:2934.4187-119.79711m. (36ft.)17°C (63°F)17%More Mesa
2018-10-09 10:37:3934.573-119.754170m. (557ft.)22°C (72°F)22%19 Oaks Camp Trail
2018-09-29 18:21:3934.4602-119.76350m. (164ft.)17°C (63°F)17%154
2018-09-29 18:12:3534.4634-119.75765m. (216ft.)17°C (63°F)17%192
2018-09-27 07:30:3634.4188-119.79712m. (40ft.)17°C (63°F)17%More Mesa
2018-09-25 09:59:2034.5022-119.609144m. (473ft.)21°C (70°F)21%Blue Canyon Trail Cot2Camuesa
2018-09-23 09:44:4834.5397-119.76194m. (311ft.)26°C (79°F)26%Santa Ynez River Trail
2018-09-20 08:09:4834.4186-119.79611m. (37ft.)19°C (66°F)19%More Mesa
2018-09-13 07:33:0034.4204-119.7989m. (30ft.)16°C (61°F)16%More Mesa
2018-09-13 07:31:5034.4204-119.7999m. (31ft.)16°C (61°F)16%More Mesa
2018-09-13 07:15:2534.4184-119.79512m. (39ft.)12°C (54°F)12%More Mesa
2018-09-09 09:36:2634.54-119.76396m. (315ft.)26°C (79°F)26%Santa Ynez River Trail
2018-09-09 09:29:0634.5394-119.761101m. (332ft.)23°C (73°F)23%Arroyo Burro Back Rd.
2018-09-04 09:55:1134.5072-119.606146m. (479ft.)27°C (81°F)27%Santa Ynez River
2018-09-04 09:48:0534.5028-119.609147m. (482ft.)25°C (77°F)25%Blue Canyon Trail Cot2Camuesa
2018-09-04 09:46:5534.5021-119.609147m. (483ft.)24°C (75°F)24%Blue Canyon Trail Cot2Camuesa
2018-08-21 11:11:4634.5726-119.754160m. (525ft.)26°C (79°F)26%Old Mine Trail
2018-08-21 10:21:3834.5533-119.769105m. (344ft.)23°C (73°F)23%Oso Horsetrail
2018-08-07 07:05:2934.4188-119.79711m. (39ft.)18°C (64°F)18%More Mesa
2018-07-24 07:02:1434.4187-119.79713m. (42ft.)22°C (72°F)22%More Mesa
2018-07-01 09:35:4534.4187-119.7978m. (26ft.)19°C (66°F)19%More Mesa
2017-12-10 09:50:2334.0942-118.99725m. (84ft.)22°C (72°F)22%Serrano Valley Trail
2017-12-05 12:25:1034.5459-119.77297m. (320ft.)21°C (70°F)21%Oso Horsetrail
2017-12-05 11:20:3534.5724-119.754161m. (529ft.)20°C (68°F)20%Old Mine Trail
2017-11-21 09:26:5134.5458-119.77298m. (323ft.)23°C (73°F)23%Oso Horsetrail
2017-10-29 09:33:3134.507-119.606143m. (469ft.)9°C (48°F)9%Blue Canyon Trail Cot2Camuesa
2017-10-29 09:27:5034.5024-119.609143m. (471ft.)14°C (57°F)14%Blue Canyon Trail Cot2Camuesa
2017-10-10 09:37:1334.5024-119.609143m. (469ft.)17°C (63°F)17%Blue Canyon Trail Cot2Camuesa
2017-10-08 11:24:4434.2799-119.3150m. (2ft.)26°C (79°F)26%Emma Woods Beach Loop
2017-10-08 10:56:5134.2764-119.3111m. (5ft.)24°C (75°F)24%Emma Woods Beach Loop
2017-10-08 09:44:2334.2799-119.3153m. (10ft.)25°C (77°F)25%Emma Woods Beach Loop
2017-10-08 09:17:0334.2814-119.31618m. (61ft.)23°C (73°F)23%Emma Woods Picnic Area
2017-09-28 08:49:4734.4067-119.8473m. (11ft.)21°C (70°F)21%UCSB lagoon
2017-09-28 07:58:1334.4187-119.79613m. (45ft.)18°C (64°F)18%More Mesa
2017-09-12 09:35:1634.5024-119.609144m. (474ft.)25°C (77°F)25%Blue Canyon Trail Cot2Camuesa
2017-08-17 08:07:1334.4181-119.7917m. (23ft.)19°C (66°F)19%More Mesa
2017-08-15 11:03:3134.4989-119.677235m. (773ft.)21°C (70°F)21%Gibraltar Back Rd.
2017-08-11 10:56:5934.4061-119.84511m. (36ft.)N/AN/AUCSB lagoon
2017-08-11 10:43:5034.4077-119.84911m. (39ft.)N/AN/AUCSB Labyrinth
2017-08-11 10:39:2934.4068-119.8489m. (30ft.)N/AN/AUCSB lagoon
2017-07-18 09:23:3734.4113-119.8513m. (12ft.)N/AN/AUCSB lagoon
2017-07-18 09:06:1034.4082-119.8495m. (17ft.)N/AN/AUCSB lagoon
2017-07-16 07:20:2234.4185-119.818m. (61ft.)N/AN/AMore Mesa Main Loop
2017-07-11 07:40:1934.4066-119.8476m. (20ft.)N/AN/AUCSB lagoon
2017-05-20 12:55:0134.4756-119.79960m. (197ft.)N/AN/AOld San Marcos Rd.
2016-12-23 09:57:5034.5346-119.564163m. (535ft.)N/AN/A5N16
2016-11-16 08:38:3534.5604-119.771113m. (371ft.)N/AN/ASanta Cruz Creek Trail
2016-11-15 08:42:0734.458-119.632135m. (445ft.)N/AN/ACS<->SY Fireroad
2016-10-12 11:39:3634.4067-119.847-6m. (-21ft.)N/AN/AUCSB lagoon
2016-10-02 09:17:3134.507-119.606136m. (447ft.)N/AN/ABlue Canyon Trail Cot2Camuesa
2016-10-02 08:47:0634.5028-119.609137m. (450ft.)N/AN/ABlue Canyon Trail Cot2Camuesa
2016-09-12 12:38:4834.4061-119.8463m. (13ft.)N/AN/AUCSB lagoon
2016-09-01 11:15:3434.4554-119.67575m. (248ft.)N/AN/AMountain Dr.
2016-08-30 09:15:1734.5028-119.609144m. (472ft.)N/AN/ABlue Canyon Trail Cot2Camuesa
2016-08-14 08:32:5434.5071-119.606140m. (460ft.)N/AN/ABlue Canyon Trail Cot2Camuesa
2016-08-10 07:39:4434.4244-119.79312m. (41ft.)N/AN/AMore Mesa Main Loop
2016-08-10 07:28:2034.4188-119.79716m. (53ft.)N/AN/AMore Mesa
2016-07-04 11:09:3434.4068-119.847-11m. (-38ft.)N/AN/AUCSB lagoon
2016-04-30 12:11:5034.405-119.739-10m. (-34ft.)N/AN/ALos Positas
2015-12-22 11:11:4934.5534-119.76999m. (325ft.)N/AN/AOso Horsetrail
2015-11-29 07:53:3934.5354-119.72493m. (307ft.)N/AN/AParadise Rd.
2015-11-15 09:54:5234.502-119.609121m. (398ft.)N/AN/ABlue Canyon Trail Cot2Camuesa
2015-11-01 08:36:5234.5022-119.609129m. (425ft.)N/AN/ABlue Canyon Trail Cot2Camuesa
2015-10-25 09:31:4334.5021-119.609130m. (428ft.)N/AN/ABlue Canyon Trail Cot2Camuesa
2015-10-02 16:56:3634.4217-119.826-10m. (-35ft.)N/AN/AGoleta slough
2015-09-30 16:32:5534.4921-119.685324m. (1063ft.)N/AN/ACamino Cielo
2015-09-24 07:03:2834.4525-119.7339m. (128ft.)N/AN/ASan Roque Rd.
2015-09-03 13:50:0734.4216-119.826-13m. (-44ft.)N/AN/AGoleta slough
2015-08-20 11:13:5834.4216-119.8267m. (25ft.)N/AN/AGoleta slough
2015-08-18 09:38:3834.5023-119.609142m. (468ft.)N/AN/ABlue Escondito Creek
2015-08-13 08:07:2034.4181-119.79116m. (53ft.)N/AN/AMore Mesa
2015-08-13 07:56:3534.424-119.79510m. (35ft.)N/AN/AMore Mesa Main Loop
2015-08-13 07:47:4734.4186-119.814m. (48ft.)N/AN/AMore Mesa
2015-08-09 09:05:1734.5647-119.767121m. (399ft.)N/AN/ASanta Cruz Creek Trail
2015-08-09 03:35:2234.5726-119.754164m. (540ft.)N/AN/AOld Mine Trail
2015-08-06 14:17:3634.4066-119.84711m. (36ft.)N/AN/AUCSB lagoon
2015-08-02 12:14:3634.4493-119.6975m. (248ft.)N/AN/AMountain Dr.
2015-07-09 14:13:4934.4066-119.847-7m. (-23ft.)N/AN/AUCSB lagoon
2015-05-30 06:58:4034.4147-119.885-6m. (-20ft.)N/AN/APlover Reserve- Coal Oil Point
2015-01-12 12:00:00N/AN/AN/AN/AN/ASB Airport
2015-01-12 12:00:00N/AN/AN/AN/AN/ASB Airport
2015-01-02 13:40:5734.3965-119.5281m. (4ft.)N/AN/ACarp. Salt Marsh Trail
2014-12-06 10:19:3634.535-119.714104m. (343ft.)N/AN/AParadise Rd.
2014-10-26 07:24:0734.5702-119.757137m. (451ft.)N/AN/ASanta Cruz Trail (Upper Oso)
2014-10-14 08:25:5434.5142-119.632138m. (453ft.)N/AN/ACS Mono
2014-10-09 00:00:00N/AN/AN/AN/AN/AUCSB lagoon
2014-09-21 08:50:4434.5354-119.724106m. (348ft.)N/AN/AParadise Rd.
2014-09-21 08:31:5434.535-119.714108m. (355ft.)N/AN/AParadise Rd.
2014-09-21 07:48:1434.5234-119.681148m. (487ft.)N/AN/A5N18
2014-09-16 00:00:00N/AN/AN/AN/AN/ACS<->SY Fireroad
2014-09-11 00:00:00N/AN/AN/AN/AN/AUCSB lagoon
2014-08-26 09:51:5334.5022-119.609142m. (467ft.)N/AN/ABlue Canyon Trail Cot2Camuesa
2014-08-09 14:58:5634.5402-119.76296m. (316ft.)N/AN/AArroyo Burro Back Rd.
2014-08-07 00:00:0034.4062-119.8473m. (10ft.)N/AN/AUCSB lagoon
2014-08-05 00:00:0034.4979-119.611147m. (483ft.)N/AN/ABlue Escondito Creek
2014-08-02 00:00:0034.5726-119.754163m. (536ft.)N/AN/A19 Oaks Trail
2014-08-02 00:00:0034.5664-119.76129m. (425ft.)N/AN/ASanta Cruz Trail (Upper Oso)
2014-07-22 00:00:0034.4968-119.611143m. (471ft.)N/AN/ABlue Canyon Trail Cot2Camuesa
2014-07-20 00:00:00N/AN/AN/AN/AN/ACS<->SY Fireroad
2014-07-03 00:00:00N/AN/AN/AN/AN/ALake Los Carneros
2014-01-03 00:00:00N/AN/AN/AN/AN/AUCSB lagoon
2013-12-06 00:00:00N/AN/AN/AN/AN/AMountain Dr.
2013-11-17 00:00:00N/AN/AN/AN/AN/ACottam Meadow
2013-11-09 00:00:00N/AN/AN/AN/AN/ALos Carneros Rd.
2013-10-10 00:00:00N/AN/AN/AN/AN/ATunnel paved
2013-10-05 00:00:00N/AN/AN/AN/AN/APond Trail- Coal Oil Point
2013-09-29 00:00:00N/AN/AN/AN/AN/AUCSB bikepath
2013-09-27 00:00:00N/AN/AN/AN/AN/AWilcox restoration
2013-09-02 00:00:00N/AN/AN/AN/AN/AUCSB lagoon
2013-08-03 00:00:00N/AN/AN/AN/AN/ACS<->SY Fireroad
2013-08-01 00:00:00N/AN/AN/AN/AN/AUCSB lagoon
2013-07-01 00:00:00N/AN/AN/AN/AN/AUCSB lagoon
2013-06-29 00:00:00N/AN/AN/AN/AN/AMaria Ygnacio bikepath
2013-06-19 00:00:00N/AN/AN/AN/AN/APainted Cave Rd.
2013-06-12 00:00:00N/AN/AN/AN/AN/AOld San Marcos Rd.
2013-05-19 00:00:00N/AN/AN/AN/AN/AOld San Marcos Rd.
2012-12-17 00:00:00N/AN/AN/AN/AN/AN/A
2012-09-01 00:00:00N/AN/AN/AN/AN/AUCSB bikepath
2012-09-01 00:00:00N/AN/AN/AN/AN/AMore Mesa
2012-08-17 16:15:06N/AN/AN/AN/AN/AGoleta slough
2012-08-17 16:14:55N/AN/AN/AN/AN/AGoleta slough
2012-07-31 00:00:00N/AN/AN/AN/AN/ACalle Real
2012-07-10 00:00:00N/AN/AN/AN/AN/AMore Mesa
2012-07-03 00:00:00N/AN/AN/AN/AN/ACS<->SY Fireroad
2012-06-24 00:00:00N/AN/AN/AN/AN/ASan Antonio Creek Trail
2012-06-12 00:00:00N/AN/AN/AN/AN/ABV<->Romero Fireroad
2012-06-11 08:34:54N/AN/AN/AN/AN/AOld San Marcos Rd.
2012-06-11 08:34:21N/AN/AN/AN/AN/AOld San Marcos Rd.
2012-06-11 08:34:12N/AN/AN/AN/AN/AOld San Marcos Rd.
2012-05-22 00:00:00N/AN/AN/AN/AN/AMore Mesa
2012-05-15 00:00:00N/AN/AN/AN/AN/AMore Mesa
2012-03-04 00:00:00N/AN/AN/AN/AN/AOld San Marcos Rd.
2012-01-21 00:00:00N/AN/AN/AN/AN/AUCSB bikepath
2011-12-31 00:00:00N/AN/AN/AN/AN/AUCSB bikepath
2011-12-03 00:00:00N/AN/AN/AN/AN/AN/A
2011-10-20 13:14:50N/AN/AN/AN/AN/AUCSB bikepath
2011-10-20 13:14:35N/AN/AN/AN/AN/AUCSB bikepath
2011-10-20 13:14:23N/AN/AN/AN/AN/AUCSB bikepath
2011-10-20 13:13:39N/AN/AN/AN/AN/AUCSB bikepath
2011-10-20 13:13:20N/AN/AN/AN/AN/AUCSB bikepath
2011-10-20 13:12:49N/AN/AN/AN/AN/AUCSB bikepath
2011-10-04 00:00:00N/AN/AN/AN/AN/AUCSB bikepath
2011-10-04 00:00:00N/AN/AN/AN/AN/AUCSB bikepath
2011-09-29 13:08:08N/AN/AN/AN/AN/ACliff Dr.
2011-09-27 08:55:4934.405-119.7392m. (6ft.)N/AN/AElings Park
2011-09-26 14:11:56N/AN/AN/AN/AN/AMore Mesa
2011-09-26 14:07:00N/AN/AN/AN/AN/AMore Mesa
2011-09-26 14:04:26N/AN/AN/AN/AN/AMore Mesa
2011-09-26 14:03:13N/AN/AN/AN/AN/AMore Mesa
2011-09-26 14:03:03N/AN/AN/AN/AN/AMore Mesa
2011-07-29 17:07:24N/AN/AN/AN/AN/AMore Mesa
2011-07-29 17:07:15N/AN/AN/AN/AN/AMore Mesa
2011-07-29 17:06:51N/AN/AN/AN/AN/AMore Mesa

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