Castilleja rubicundula var. rubicundula

unknown
Common names: Pink cream-sacs
EndemicConservation concern
Synonyms: Orthocarpus bicolor A. Heller O. lithospermoides var. bicolor (A. Heller) Jepson
Treatment appears in FNA Volume 17. Treatment on page 652.
Revision as of 18:27, 24 September 2019 by FNA>Volume Importer

Herbs 0.6–6 dm. Leaves 0–7-lobed, lobes widely spreading. Bracts 5–9-lobed. Corollas: abaxial lip white, in most populations quickly fading to pink or pink-purple, usually purple-dotted at base, teeth white.


Phenology: Flowering (Apr–)May–Jun(–Jul).
Habitat: Grasslands, damp meadows, springs, woodland edges, dry rocky slopes, coastal valleys and foothills, often on serpentine.
Elevation: 0–1000 m.

Discussion

Variety rubicundula grows in the northern and western portions of the Sacramento Valley, the North Coast Range, and San Francisco Bay area of California, often on serpentine substrates. It is far less common than var. lithospermoides and often occurs in somewhat more mesic conditions. Populations in the north-central Sacramento Valley contain unusually robust plants with especially large flowers, and were named Orthocarpus bicolor. Variety rubicundula is of conservation concern, threatened by habitat loss to development, agriculture, and grazing.

Selected References

None.

Lower Taxa

None.
J. Mark Egger +, Peter F. Zika +, Barbara L. Wilson +, Richard E. Brainerd +  and Nick Otting +
(Jepson) T. I. Chuang & Heckard +
Orthocarpus rubicundulus +
Pink cream-sacs +
0–1000 m. +
Grasslands, damp meadows, springs, woodland edges, dry rocky slopes, coastal valleys and foothills, often on serpentine. +
Flowering (Apr–)May–Jun(–Jul). +
Endemic +  and Conservation concern +
Orthocarpus bicolor +  and O. lithospermoides var. bicolor +
Castilleja rubicundula var. rubicundula +
Castilleja rubicundula +
variety +