Camissoniopsis hirtella

(Greene) W. L. Wagner & Hoch

Syst. Bot. Monogr. 83: 204. 2007.

Basionym: Oenothera hirtella Greene Fl. Francisc., 215. 1891
Synonyms: Camissonia hirtella (Greene) P. H. Raven O. hirta var. jonesii H. Léveillé O. micrantha var. hirtella (Greene) Jepson O. micrantha var. jonesii (H. Léveillé) Munz O. micrantha var. reedii (Parish) Jepson Sphaerostigma arenicola A. Nelson S. bistortum var. reedii Parish S. hirtellum (Greene) Small S. hirtellum var. montanum Davidson S. micranthum var. jonesii (H. Léveillé) A. Nelson
Treatment appears in FNA Volume 10.

Herbs annual, densely villous throughout, also glandular puberulent distally. Stems erect, with 1 or more ascending branches from near base, to 60 cm. Leaves 1–11 × 0.3–2.1 cm; petiole 0–5 cm, distal ones 0–0.5 cm; blade lanceolate to ovate, sometimes elliptic-ovate or ovate distally, base cordate to truncate, sometimes cuneate or attenuate, margins dentate, apex acute. Flowers opening near sunrise; floral-tube 1–3 mm; sepals 2.5–6 mm; petals yellow, sometimes red-dotted near base, 2–9 mm, sometimes with a tooth arising from emarginate apex; episepalous filaments 1.2–6 mm, epipetalous filaments 0.5–3 mm, anthers 0.4–1 mm, less than 5% of pollen-grains 4-pored or 5-pored; style 2–8 mm, stigma surrounded by anthers at anthesis. Capsules 1–2-coiled spiral, subterete in living material, 4-angled when dry, 13–20 (–25) × 0.7–0.9 mm. Seeds 1–1.2 mm. 2n = 14.


Phenology: Flowering (Jan–)Mar–Jul(–Nov).
Habitat: Brushy hills and slopes, on burns.
Elevation: 0–2300 m.

Distribution

Calif., Mexico (Baja California)

Discussion

Camissoniopsis hirtella occurs from Amador and Trinity counties southward in the Coast Ranges and Sierra Nevada of California to the Sierra de Juárez and Sierra San Pedro Mártir, Baja California, usually away from the immediate coast and barely reaching the margins of the desert. P. H. Raven (1969) determined C. hirtella to be self-compatible and primarily autogamous. The species occasionally hybridizes with C. ignota (Raven).

Selected References

None.

Lower Taxa

None.
... more about "Camissoniopsis hirtella"
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Warren L. Wagner +
(Greene) W. L. Wagner & Hoch +
attenuate +, cuneate +, cordate +  and truncate +
Oenothera hirtella +
indehiscent +  and loculicidal +
serrulate +, denticulate +  and dentate +
ovate +, elliptic-ovate +  and lanceolate +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
1.3 cm13 mm <br />0.013 m <br /> (2 cm20 mm <br />0.02 m <br />) +
4-angled +  and subterete +
1-5 times or straight narrowly cylindrical and thickened +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
Calif. +  and Mexico (Baja California) +
0–2300 m. +
white +  and reddish-brown +
exfoliating +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
basifixed +  and versatile +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
actinomorphic +
not swollen +, 4-angled +, curled +  and contorted +
1-5 times or straight narrowly cylindrical and thickened +
Brushy hills and slopes, on burns. +
puberulent +  and villous +
deciduous +
1 cm10 mm <br />0.01 m <br /> (11 cm110 mm <br />0.11 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
numerous +  and 1 +
red-dotted +  and yellow +
0.2 cm2 mm <br />0.002 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
0 cm0 mm <br />0 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Flowering (Jan–)Mar–Jul(–Nov). +
Syst. Bot. Monogr. +
basal +  and cauline +
clavate +  and globose +
7 +  and numerous +
sculptured +  and smooth +
obovoid +  and flattened +
0.1 cm1 mm <br />0.001 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
purple +, pink +, red +  and green +
deciduous +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
parenchymatous +
parietal +, axile +  and placentation +
unequal +
aquatic +, amphibious +  and terrestrial +
2 times as many or as many as sepals +
prostrate +  and decumbent +
0 cm0 mm <br />0 m <br /> (60 cm600 mm <br />0.6 m <br />) +
subcapitate +  and subglobose +
petiolate +  and sessile +
intrapetiolar +
pubescent +  and glabrous +
0.2 cm2 mm <br />0.002 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
aquatic +, amphibious +  and terrestrial +
non-papillate +
Camissonia hirtella +, O. hirta var. jonesii +, O. micrantha var. hirtella +, O. micrantha var. jonesii +, O. micrantha var. reedii +, Sphaerostigma arenicola +, S. bistortum var. reedii +, S. hirtellum +, S. hirtellum var. montanum +  and S. micranthum var. jonesii +
Camissoniopsis hirtella +
Camissoniopsis +
species +
3(-5)-aperturate +
smooth +  and erose +
papillate +