Species Details

Orthocarpus pachystachyus

Shasta orthocarpus

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Photo of Orthocarpus pachystachyus
©2022 Julie Kierstead
Photo of Orthocarpus pachystachyus
©1996 Dean Wm. Taylor
Photo of Orthocarpus pachystachyus
© 2022 Julie Kierstead

Species Description:

Orthocarpus pachystachyus, commonly known as Shasta orthocarpus, is a annual herb in the Orobanchaceae that is found only in California. It occurs within Great Basin scrub, Meadows and seeps, and Valley and foothill grassland, growing at elevations from 840 to 850 meters. Orthocarpus pachystachyus is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Lifeform: annual herb
Blooming Period: May
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Elevation:
840 - 850 meters
2755 - 2790 feet
General Habitats:
  • Great Basin scrub
  • Meadows and seeps
  • Valley and foothill grassland
Microhabitat Details:
Microhabitat:
Notes:
Rediscovered to science by D. Taylor in 1996. Historical occurrences probably extirpated by agriculture and grazing.
Threats:
Taxonomy:
Total Occurrences: 4
Element Occurrence Ranks:
A B C D X U
0 1 0 0 0 3
Occurrence Status:
Historical >20 Years 4
Recent <=20 Years 0
Presence:
Presumed Extant 4
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Siskiyou (SIS)
Quads: Name (Quad Code)
Ash Creek Butte (4112241), China Mtn. (4112245), Gazelle (4112255)*, Hotlum (4112243), Juniper Flat (4112253), Lake Shastina (4112254), Mt. Shasta (4112242)*, The Whaleback (4112252), West Haight Mtn. (4112251), Yreka (4112266)*
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.
Presumed Extant
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