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Habit Herbs annual, glandular puberulent.
Stems

several, 5–150 cm.

Leaves

in poorly defined basal rosette and cauline;

petiole 0.7–3.4 cm;

blade unlobed, broadly ovate to oblong-ovate, elliptic, or subcordate, 1.2–7.6 × 0.8–5.5 cm, margins serrulate to serrate-denticulate, brown oil cells prominently lining veins abaxially.

Racemes

erect, elongating in flower.

Flowers

opening at sunrise;

buds without free tips;

floral tube 0.6–1 mm;

sepals 5–7 mm;

petals purple, fading darker purple, 7–14 mm;

stamens 4 + 4, unequal, anthers 1.5–2 mm, glabrous, stigma exserted beyond anthers at anthesis.

Capsules

spreading to reflexed, clavate, 11–25 mm;

pedicel 3–5 mm.

Seeds

1.5–1.8 mm.

Chylismia atwoodii

Phenology Flowering Aug–Nov.
Habitat Open slopes in desert shrub communities, on clay soil.
Elevation 1100–1600 m. (3600–5200 ft.)
Distribution
from FNA
UT
[BONAP county map]
Discussion

Chylismia atwoodii is known only from eastern Kane County, and only from a few collections, so is still poorly characterized morphologically, but clearly distinct among the purple-petaled species.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Chylismia > sect. Chylismia
Sibling taxa
C. arenaria, C. brevipes, C. cardiophylla, C. claviformis, C. confertiflora, C. eastwoodiae, C. exilis, C. heterochroma, C. megalantha, C. multijuga, C. munzii, C. parryi, C. scapoidea, C. specicola, C. walkeri
Synonyms Camissonia atwoodii
Name authority (Cronquist) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 205. (2007)
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