Species Details

Chorizanthe aphanantha

Irish Hills spineflower

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Photo by © 2019 Keir Morse  max-height:128px; max-width:145px;
© 2019 Keir Morse
Photo by © 2019 Keir Morse  max-height:128px; max-width:145px;
© 2019 Keir Morse
Photo by © 2019 Keir Morse  max-height:128px; max-width:145px;
© 2019 Keir Morse
Scientific Name:
Chorizanthe aphanantha K.M. Nelson & D.J. Keil
Common Name:
Irish Hills spineflower
Family: Polygonaceae
Element Code: PDPGN04110
USDA Plants Symbol:
Synonyms/Other Names:
Lifeform: annual herb
Blooming Period: Apr-Jun
Elevation:
100 - 370 meters
330 - 1215 feet
General Habitat:
  • Chaparral (edges, openings)
  • Coastal scrub
General Micro Habitat:
Micro Habitat:
  • Gravelly
  • Rocky
  • Serpentinite
Notes:

Similar to and co-occurs with C. breweri; differentiated in having perianth 1.5-1.7 mm long (vs. 2-5 mm) and involucre green at flowering (vs. red to purple at flowering in C. breweri).

Threats:
Taxonomy:
Other:
References:

See MadroƱo 65(4):184-191 (2018) for original description and taxonomic key.

Total Occurrences: 3
Element Occurrence Ranks:
A B C D X U
0 0 0 0 0 3
Occurrence Status:
Historical >20 Years 0
Recent <=20 Years 3
Presence:
Presumed Extant 3
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
San Luis Obispo (SLO)
Quads: Name (Quad Code)
Pismo Beach (3512026), San Luis Obispo (3512036)
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