Flora of North America species comparison

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Clarkia lewisii

Clarkia australis

Lewis' clarkia

Small's southern clarkia
Stems

erect, to 50 cm, puberulent to glabrate.

erect, to 100 cm, puberulent.
Leaves

petiole to 7 mm;

blade narrowly lanceolate to lanceolate, 2–5 cm.

petiole 10–30 mm;

blade linear to lanceolate, 2–5 cm.
Inflorescences

open racemes, axis recurved at tip in bud;

buds pendent.

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 1.5–4 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, base purplish red or with red line, sometimes reddish purple-flecked, 10–30 mm;

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

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

15–70 mm, beak 0–3 mm.

10–20 mm;

pedicel 0–4 mm.
Seeds

brown, 1 mm, scaly to puberulent, crest inconspicuous.

brown, 1–1.5 mm, scaly.
2n

= 18.

= 10.

Clarkia lewisii

Clarkia australis
Phenology Flowering Jun. Flowering Jun–Jul.
Habitat Coastal scrub, woodlands, chaparral. Yellow-pine forests.
Elevation 0–300 m. (0–1000 ft.) 800–1500 m. (2600–4900 ft.)
Distribution
from FNA
CA
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Clarkia lewisii is known primarily from Monterey County, sparsely in San Benito County, barely reaching Santa Clara County, and is listed as rare by the California Native Plant Society. It is most closely related and morphologically similar to C. cylindrica, from which it can be distinguished by having all filaments about equally wide and a ring of hairs at the rim of the floral tube; outer filaments of C. cylindrica are two times as wide as the inner ones, and the ring of hairs is within the tube below the rim. Clarkia lewisii is also closely related to C. rostrata, from which it differs conspicuously by having a much shorter capsule beak.

Clarkia lewisii is a new name applied to the species known until 1978 as C. bottae, following examination and reinterpretation of the type of Godetia bottae Spach by P. H. Raven and D. R. Parnell (1978). They determined that the type specimens of G. bottae actually referred to the species then known as C. deflexa (Jepson) H. Lewis & M. E. Lewis, and reapplied the name C. bottae to that species in sect. Fibula.

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

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. FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Phaeostoma > subsect. Sympherica Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Myxocarpa
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. 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
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 P. H. Raven & D. R. Parnell: Ann. Missouri Bot. Gard. 64: 642. (1978) 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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