Chylismia brevipes

(A. Gray) Small

Bull. Torrey Bot. Club 23: 194. 1896. (as Chylisma)

Basionym: Oenothera brevipes A. Gray in War Department [U.S.] Pacif. Rail. Rep. 4(5): 87. 1857
Synonyms: Camissonia brevipes (A. Gray) P. H. Raven
Treatment appears in FNA Volume 10.

Herbs annual, moderately to densely villous, sometimes strig­illose. Stems branched, 3–75 cm. Leaves primarily in basal rosette, cauline greatly reduced when present, 6–14 × 1.5–3.5 cm; petiole 1.5–4 (–11) cm; blade pinnately lobed or lateral lobes greatly reduced or absent, often mixed on same plant, terminal lobe usually ovate, rarely elliptic, 2.5–6.9 × 1.5–7 cm, margins irregularly dentate, oil cells on abaxial surface inconspicuous. Racemes nodding, mostly elongating after flowers. Flowers opening at sunrise; buds some­times individually reflexed, without free tips or with subapical free tips 1–2 mm, or with minute, apical free tips less than 1 mm; floral-tube 3–8 mm, densely short-villous inside proximally; sepals 5–9 mm; petals bright-yellow, sometimes with red dots at base, fading yellow to orange or reddish, 3–18 mm; stamens sub­equal, filaments 3–6 mm, anthers 2.5–6 mm, ciliate; style 10–18 mm, stigma exserted beyond anthers at anthesis. Capsules ascending or spreading, oblong-cylindrical, 18–92 mm; pedicel 2–20 mm. Seeds 1–1.5 mm.

Distribution

sw United States

Discussion

Subspecies 3 (3 in the flora).

P. H. Raven (1962, 1969) determined this species to be self-incompatible.

Selected References

None.

Key

1 Flower buds individually reflexed; petals often fading reddish, 3–8 mm. Chylismia brevipes subsp. arizonica
1 Flower buds not individually reflexed; petals fading yellow to orange, 6–18 mm. > 2
2 Plants stout, villous; buds with subapical free tips 1–2 mm; petals usually without red dots at base. Chylismia brevipes subsp. brevipes
2 Plants slender, usually strigillose, sometimes also villous proximally; buds with apical free tips 0–1 mm; petals often with red dots near base. Chylismia brevipes subsp. pallidula

"elongating" is not a number.

... more about "Chylismia brevipes"
0.25 cm2.5 mm <br />0.0025 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Warren L. Wagner +
(A. Gray) Small +
darker flecks +
Oenothera brevipes +
indehiscent +  and loculicidal +
lobed +, toothed +  and entire +
reduced +
curved +  and straight +
spreading +  and ascending +
oblong-cylindrical +
1.8 cm18 mm <br />0.018 m <br /> (9.2 cm92 mm <br />0.092 m <br />) +
sw United States +
basifixed +  and versatile +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
actinomorphic +
curved +  and straight +
loculicidal +
oblong-cylindrical +, clavate +  and subterete +
unlobed +  and lobed +
deciduous +
6 cm60 mm <br />0.06 m <br /> (14 cm140 mm <br />0.14 m <br />) +
reduced +
1.5 cm15 mm <br />0.015 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
reduced +
membranous +
numerous +  and 1 +
0.2 cm2 mm <br />0.002 m <br /> (2 cm20 mm <br />0.02 m <br />) +
fading yellow +  and orange or reddish +
0.3 cm3 mm <br />0.003 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
4 cm40 mm <br />0.04 m <br /> (11 cm110 mm <br />0.11 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Bull. Torrey Bot. Club +
well-developed +
basal +  and cauline +
clavate +  and globose +
7 +  and numerous +
lenticular +  and narrowly ovoid +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
purple +, pink +, red +  and green +
deciduous +
0.5 cm5 mm <br />0.005 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
parenchymatous +
parietal +, axile +  and placentation +
1 +, 4 +  and 2 +
subequal +
aquatic +, amphibious +  and terrestrial +
2 times as many or as many as sepals +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
prostrate +  and decumbent +
3 cm30 mm <br />0.03 m <br /> (75 cm750 mm <br />0.75 m <br />) +
conical-peltate +
capitate +  and entire +
long-petiolate +
intrapetiolar +
1 cm10 mm <br />0.01 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
aquatic +, amphibious +  and terrestrial +
non-papillate +
Camissonia brevipes +
Chylismia brevipes +
Chylismia sect. Chylismia +
species +
2.5 cm25 mm <br />0.025 m <br /> (6.9 cm69 mm <br />0.069 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (7 cm70 mm <br />0.07 m <br />) +
3(-5)-aperturate +
smooth +  and erose +
papillate +