Taxon Report

Phacelia gymnoclada Wats.

naked-stemmed phacelia

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Taxon Summary

Phacelia gymnoclada, commonly known as naked-stemmed phacelia, is a annual herb in the Hydrophyllaceae that is found in California and elsewhere. It occurs within Chenopod scrub, Great Basin scrub, and Pinyon and juniper woodland, growing at elevations from 1220 to 2500 meters. Phacelia gymnoclada is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.


  Classification

Scientific Name:
Phacelia gymnoclada Wats.
Common Name:
naked-stemmed phacelia
Family: Hydrophyllaceae
Element Code: PDHYD0C1X0
USDA Plants Symbol: PHGY
Synonyms/Other Names:

Ecology and Life History

Lifeform: annual herb
Blooming Period: Apr-Jun(Aug) Apr-Jun(Aug)
Elevation: 1220-2500 (4005-8205)
General Habitats: Chenopod scrub, Great Basin scrub, Pinyon and juniper woodland
Microhabitat: Clay (sometimes), Gravelly (sometimes)
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 4
Element Occurrence Ranks:
   Excellent (A) 0
   Good (B) 0
   Fair (C) 0
   Poor (D) 0
   None (X) 0
   Unknown (U) 4
California Endemic:  False
California Counties and Islands: Name (Code)
Lassen (LAS), Mono (MNO)
Quads: Name (Quad Code)
Benton (3711874), Calneva Lake (4012021), Wendel (4012032), Whitmore Hot Springs (3711867)

Notes

Endangered in OR. See Botany of the King Exploration, p. 255 (1871) for original description.
Threats:
Taxonomy:
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 31 January 2025].