Species Details

Howellanthus dalesianus

Scott Mountain howellanthus

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Scientific Name:
Howellanthus dalesianus (Constance) Walden & R. Patt.
Common Name:
Scott Mountain howellanthus
Family: Hydrophyllaceae
Element Code: PDHYD0C140
USDA Plants Symbol: HODA2
Synonyms/Other Names:
Lifeform: perennial herb
Blooming Period: May-Jul(Aug)
Elevation:
1025 - 2105 meters
3365 - 6905 feet
General Habitat:
  • Lower montane coniferous forest
  • Meadows and seeps
  • Subalpine coniferous forest
  • Upper montane coniferous forest
General Micro Habitat: serpentinite
Micro Habitat:
Notes:
Possibly threatened by logging and grazing. See Phacelia dalesiana in TJM (1993) and TJM 2. See Leaflets of Western Botany 2:51 (1937) for original description, and Madroño 57(4):268-273 (2010) for taxonomic treatment.
Threats:
Possibly threatened by logging and grazing.
Taxonomy:
See Phacelia dalesiana in TJM (1993) and TJM 2.
Other:
References:
See Leaflets of Western Botany 2:51 (1937) for original description, and Madroño 57(4):268-273 (2010) for taxonomic treatment.
Total Occurrences: 46
Element Occurrence Ranks:
A B C D X U
2 22 4 0 0 18
Occurrence Status:
Historical >20 Years 46
Recent <=20 Years 0
Presence:
Presumed Extant 46
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Shasta (SHA), Siskiyou (SIS), Trinity (TRI)
Quads: Name (Quad Code)
Carrville (4112216), Chicken Hawk Hill (4112214), Damnation Peak (4012285), Lake McCloud (4112221), Mount Eddy (4112234), Mumbo Basin (4112225), Scott Mountain (4112236), Seven Lakes Basin (4112224), South China Mtn. (4112235), Tangle Blue Lake (4112226), Whisky Bill Peak (4112215), Ycatapom Peak (4112217)
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.

Map

Presumed Extant
Counties   Quads