Flora of North America species comparison

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Clarkia rostrata

beak clarkia
Stems

erect, to 60 cm, puberulent.
Leaves

petiole to 10 mm;

blade lanceolate, 1–6 cm.
Inflorescences

open racemes, axis recurved at tip in bud;

buds pendent.
Flowers

floral tube 1.5–2.5 mm, with ring of hairs at distal margin inside;

sepals reflexed together to 1 side;

corolla bowl-shaped, petals pinkish lavender shading white near middle, often flecked reddish purple, base reddish purple, 10–25 mm;

stamens 8, unequal, width of all filaments equal or inner slightly thinner, outer anthers lavender, inner smaller, paler.
Capsules

10–30 mm, beak 7–15 mm.
Seeds

unknown.
2n

= 18.

Clarkia rostrata
Phenology Flowering Apr–May.
Habitat Oak-pine woodlands.
Elevation 500 m. (1600 ft.)
Distribution
from FNA
CA
[BONAP county map]
Discussion

Clarkia rostrata is known only from the Merced River drainage in the central Sierra Nevada Foothills, including Mariposa, Merced, Stanislaus, and (barely) Tuolumne counties. Because of its very limited distribution, C. rostrata is listed as rare by the California Native Plant Society.

Clarkia rostrata is closely related to C. cylindrica and C. lewisii but can be distinguished readily from both by the conspicuous beak of the capsule.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Phaeostoma > subsect. Sympherica
Sibling taxa
C. affinis, C. amoena, C. arcuata, C. australis, C. biloba, C. borealis, C. bottae, C. breweri, C. concinna, C. cylindrica, C. davyi, C. delicata, C. dudleyana, C. epilobioides, C. exilis, C. franciscana, C. gracilis, C. heterandra, C. imbricata, C. jolonensis, C. lassenensis, C. lewisii, C. lingulata, C. mildrediae, C. modesta, C. mosquinii, C. prostrata, C. pulchella, C. purpurea, C. rhomboidea, C. rubicunda, C. similis, C. speciosa, C. springvillensis, C. stellata, C. tembloriensis, C. unguiculata, C. virgata, C. williamsonii, C. xantiana
Name authority W. S. Davis: Brittonia 22: 281. (1970)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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