Camissonia campestris
Camissonia campestris subsp. obispoensis
field primrose, Mojave sun cup
obispo suncup, San Luis obispo sun cup
erect or decumbent, slender, wiry, usually well-branched, 5–25(–50) cm.
usually decumbent.
proximalmost not clustered near base;
blade linear to narrowly elliptic or narrowly oblanceolate, 0.5–2.5(–3) × 0.1–0.15(–0.5) cm, base attenuate, margins sparsely serrulate to coarsely serrate, apex acuminate.
blade narrowly elliptic, margins coarsely serrate.
opening near sunrise;
floral tube 1.5–5.5 mm, ± densely villous on proximal 1/2 inside;
sepals 3.5–8(–12) mm, reflexed in pairs;
petals (3.5–)5–15.5 mm, each usually with 1 or 2 red dots basally; episepalous filaments (1.4–)2.1–5.5 mm, epipetalous filaments (0.7–)1.2–3.2 mm, anthers 1–2.4 mm, pollen with less than 5% of grains 4- or 5-pored;
style (3.2–)4–12(–15) mm, stigma well exserted beyond anthers at anthesis.
20–43 × 0.7–1.5(–2) mm;
subsessile.
0.8–1.6 × 0.4–0.6 mm.
= 14.
Camissonia campestris
Camissonia campestris subsp. obispoensis
Subspecies 2 (2 in the flora).
P. H. Raven (1969) determined that Camissonia campestris is self-incompatible.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Subspecies obispoensis is known from the coastal and somewhat inland areas of central California from southern Monterey County to northwestern Santa Barbara County; the subspecies intergrades with subsp. campestris and sometimes occurs sympatrically with C. contorta and C. strigulosa, forming usually sterile hybrids. Plants of subsp. obispoensis in the western part of its range have narrower leaves with smaller serrations on the margin and are less pubescent than those in the eastern part of the range.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Stems usually erect; leaf blade margins sparsely serrulate. | subsp. campestris |
1. Stems usually decumbent; leaf blade margins coarsely serrate. | subsp. obispoensis |
CA
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USDA Plants Database
