Claytonia umbellata

S. Watson

Botany (Fortieth Parallel), 43, plate 6, figs. 4, 5. 1871.

Common names: Great Basin claytonia
EndemicConservation concern
Treatment appears in FNA Volume 4. Treatment on page 475. Mentioned on page 465, 466.
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Plants perennial, with globose tubers 10–50 mm diam., mature plants rhizomatous; periderm 5–20 mm. Stems 2–25 cm. Leaves: basal leaves somtimes absent, petiolate, 5–25 cm, blade elliptic to rhombic, 1–3 × 0.2–2 cm; cauline leaves petiolate, blade elliptic to ovate 1.5–5 × 1–3 cm, abruptly tapered at base. Inflorescences ebracteate. Flowers 8–14 mm diam.; sepals 5–7 mm; petals pink to magenta, 6–12 mm; ovules 6. Seeds 1–2 mm, smooth and shiny; elaiosome 1 mm or less. 2n = 16.


Phenology: Flowering May–Aug.
Habitat: North- and east-facing talus and scree slopes of drier mountain areas, subalpine coniferous forests
Elevation: 100-3000 m

Discussion

Of conservation concern.

Selected References

None.

Lower Taxa

None.

"less" is not a number.

... more about "Claytonia umbellata"
obtuse +  and apiculate +
John M. Miller +
S. Watson +
5 cm50 mm <br />0.05 m <br /> (25 cm250 mm <br />0.25 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 m <br />) +
occasionally dentate;crisped +
tapered +, elliptic +  and ovate +
1 cm10 mm <br />0.01 m <br /> (?) +  and 3 cm30 mm <br />0.03 m <br /> (?) +
scale-like +
membranous +
whorled +  and opposite +
connate +, or +  and distinct +
3 (?) +  and 2 (?) +
Great Basin claytonia +
Calif. +  and Oreg. +
100-3000 m +
0.8 cm8 mm <br />0.008 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
North- and east-facing talus and scree slopes of drier mountain areas, subalpine coniferous forests +
terminal +  and axillary +
not articulate +
subrosulate +, rosulate +, alternate +, subopposite +  and opposite +
cauline +  and basal +
plurilocular +
globose +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
pink +  and magenta +
connate +  and distinct +
0.6 cm6 mm <br />0.006 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Flowering May–Aug. +
Botany (Fortieth Parallel), +
capillary +
dispersed +
3 +  and 6 +
smooth +  and tuberculate +
rounded +
0.1 cm1 mm <br />0.001 m <br /> (?) +  and 0.2 cm2 mm <br />0.002 m <br /> (?) +
persistent +
unequal +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Endemic +  and Conservation concern +
decumbent +  and erect +
2 cm20 mm <br />0.02 m <br /> (25 cm250 mm <br />0.25 m <br />) +
Belia +  and Limnia +
Claytonia umbellata +
Claytonia +
species +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
globose +
not deciduous +
fleshy +  and succulent +
8 +, 7 +, 6 +  and 5 +