Flora of North America species comparison

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Clarkia australis

Small's southern clarkia
Stems

erect, to 100 cm, puberulent.
Leaves

petiole 10–30 mm;

blade linear to lanceolate, 2–5 cm.
Inflorescences

open racemes, axis recurved only at tip in bud, straight 4+ nodes distal to open flowers;

buds pendent, narrowly obovoid, tip obtuse.
Flowers

floral tube 2–4 mm;

sepals reflexed individually;

corolla rotate, petals lavender-purple, mottled or spotted reddish purple, ± rhombic, unlobed, 6–12(–14) ×3–7 mm, length 2.2–3 times width;

stamens 8, subequal, subtended by ciliate scales, pollen blue-gray;

ovary shallowly 4-grooved;

stigma exserted beyond anthers.
Capsules

10–20 mm;

pedicel 0–4 mm.
Seeds

brown, 1–1.5 mm, scaly.
2n

= 10.

Clarkia australis
Phenology Flowering Jun–Jul.
Habitat Yellow-pine forests.
Elevation 800–1500 m. (2600–4900 ft.)
Distribution
from FNA
CA
[BONAP county map]
Discussion

Clarkia australis is found in the foothills of the central Sierra Nevada range, from Calaveras, Madera, Mariposa, and Tuolumne counties, and has been designated as rare by the California Native Plant Society.

Clarkia australis is morphologically very similar to C. virgata and, based on its more southern distribution, may be derived from it. They are most readily distinguished morphologically by the narrower leaves of C. australis.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Myxocarpa
Sibling taxa
C. affinis, C. amoena, C. arcuata, 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. rostrata, C. rubicunda, C. similis, C. speciosa, C. springvillensis, C. stellata, C. tembloriensis, C. unguiculata, C. virgata, C. williamsonii, C. xantiana
Synonyms C. virgata var. australis
Name authority E. Small: Canad. J. Bot. 49: 1216, fig. 4D. (1971)
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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