Taxon Details

Scutellaria holmgreniorum

Holmgren's skullcap

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Taxon Summary:

Scutellaria holmgreniorum, commonly known as Holmgren's skullcap, is a perennial rhizomatous herb in the Lamiaceae that is found in California and elsewhere. It occurs within Great Basin scrub, and Pinyon and juniper woodland, growing at elevations from 1310 to 1735 meters. Scutellaria holmgreniorum is ranked 3.3, Plants About Which We Need More Information, A Review List; Not very threatened in California.

CA Rare Plant Rank: 3.3
Fed List: None
State List: None
Global Rank: G3Q
State Rank:
S3
Other Status:
CRPR Changes:
changed from 4.3 to 3.3 on 2013-02-01
Add Date: 1984-01-01
Date Edited: 2022-06-08
Lifeform: perennial rhizomatous herb
Blooming Period: May-Jul
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Elevation:
1310 - 1735 meters
4300 - 5695 feet
General Habitats:
  • Great Basin scrub
  • Pinyon and juniper woodland
Microhabitat Details:
Microhabitat:
  • Clay
  • Volcanic
Notes:
Previously on List 4.3. Taxonomic distinctiveness from S. nana is uncertain; needs further study. Some noted differences of S. holmgreniorum include: relatively elongate stems (S. nana is shorter and more compact), elongate inflorescences (S. nana has a very short, compact inflorescence), and may or may not have some hairs gland-tipped (S. nana never has gland-tipped hairs). On watch list in NV. A synonym of S. nana in TJM (1993) and TJM 2. See Brittonia 33(3):449-450 (1981) for original description.
Threats:
Taxonomy:
Total Occurrences: 11
Element Occurrence Ranks:
A B C D X U
0 0 0 0 0 11
Occurrence Status:
Historical >20 Years 11
Recent <=20 Years 0
Presence:
Presumed Extant 11
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA), Nevada (NV)
California Counties and Islands: Name (Code)
Lassen (LAS)
Quads: Name (Quad Code)
Al Shinn Canyon (4012061), Five Springs (4012052), Karlo (4012053), Litchfield (4012044), Shaffer Mtn. (4012043), Shinn Mtn. (4012062), Snowstorm Mtn. (4012063)
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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