Flora of North America species comparison

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Chorizanthe polygonoides var. longispina

Chorizanthe polygonoides var. polygonoides
Photo is of parent taxon

knotweed spineflower, long-awn spineflower, long-spine spineflower
Photo is of parent taxon

knotweed spineflower
Habit Plants generally reddish. Plants generally greenish.
Invo

-lucres 1.5–2 mm;

prominent teeth with awns 2–3 mm.

-lucres 2–2.5 mm;

prominent teeth with awns 1.5–2 mm.
2n

= 40.

= 40.

Chorizanthe polygonoides var. longispina

Chorizanthe polygonoides var. polygonoides
Phenology Flowering Apr–Jun. Flowering Apr–Jun.
Habitat Sandy to gravelly soil, mixed grassland and chaparral communities, pine-oak woodlands Sandy to gravelly mostly volcanic soils, mixed grassland communities, oak-pine or montane conifer woodlands
Elevation 30-1500 m (100-4900 ft) 100-1500 m (300-4900 ft)
Distribution
from FNA
CA; Mexico (Baja California)
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Variety longispina is localized and uncommon in the mountains from western Riverside County south through San Diego County into northern Baja California. There are scattered and even rarer disjunct populations of long-awned spineflower along the coast in the San Diego area.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Variety polygonoides occurs from Modoc County to Calaveras County in the Sierra Nevada, in the Sacramento Valley, and in the Coast Ranges from Lake County to Santa Barbara County. In San Luis Obispo and Monterey counties, knotweed spineflower is on sandstones or conglomerates rather than volcanic substrates. All populations are widely scattered and the plants are mostly rare to infrequent.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 5, p. 467. FNA vol. 5, p. 466.
Parent taxa Polygonaceae > subfam. Eriogonoideae > Chorizanthe > subg. Amphietes > sect. Acanthogonum > Chorizanthe polygonoides Polygonaceae > subfam. Eriogonoideae > Chorizanthe > subg. Amphietes > sect. Acanthogonum > Chorizanthe polygonoides
Sibling taxa
C. polygonoides var. polygonoides
C. polygonoides var. longispina
Synonyms Acanthogonum polygonoides var. longispinum, C. polygonoides subsp. longispina Acanthogonum polygonoides
Name authority (Goodman) Munz: Aliso 4: 89. (1958) unknown
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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