Flora of North America species comparison

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Clarkia springvillensis

Clarkia stellata

Springville clarkia

Lake Almanor clarkia, lake amador clarkia
Stems

erect, 30–90 cm, glabrous, glaucous.

erect, to 100 cm, puberulent.
Leaves

petiole 0–5 mm;

blade lanceolate, 2–9 cm, surfaces glaucous, glabrous.

petiole 5–30 mm;

blade lanceolate to elliptic or ovate, 1–5 cm.
Inflorescences

open racemes, axis erect;

buds pendent.

open racemes, axis in bud recurved 1–3 nodes distal to open flowers;

buds pendent, narrowly obovoid, tip acute.
Flowers

floral tube 3–4 mm;

sepals reflexed together to 1 side, usually dark red-purple, sparsely to densely puberulent abaxially, without long, spreading hairs;

corolla rotate, petals lavender-pink, usually with dark purplish spot near base, ± diamond-shaped, 13–15 mm, claw slender, equal to or longer than blade, entire;

stamens 8, unequal, outer anthers red, inner smaller, paler;

ovary with hairs as on sepals;

stigma exserted beyond anthers.

floral tube 1.5–2 mm;

sepals reflexed individually;

corolla rotate, petals lavender-purple, not dark-flecked or spotted, obovate, 6–8 × 3–5 mm, inconspicuously 3-lobed;

stamens 8, subequal, subtended by ciliate scales, pollen yellow;

ovary shallowly 4-grooved, puberulent;

stigma not exserted beyond anthers.
Capsules

15–30 mm.

20–25 mm;

pedicel 1–3 mm.
Seeds

unknown.

unknown.
2n

= 18.

= 14.

Clarkia springvillensis

Clarkia stellata
Phenology Flowering May. Flowering Jun–Jul.
Habitat Woodlands. Open coniferous forests.
Elevation 500 m. (1600 ft.) 1000–1500 m. (3300–4900 ft.)
Distribution
from FNA
CA
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Clarkia springvillensis is a rare species known primarily from the vicinity of Springville in Tulare County, with one ambiguous collection from Kern County. Due to its very limited distribution, C. springvillensis is listed as rare by the California Native Plant Society. It is derived from C. unguiculata and is closely related to C. exilis and C. tembloriensis.

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

Clarkia stellata is known from the southern Cascade–northern Sierra Nevada region, including Lassen, Nevada, Plumas, Shasta, Sierra, and Tehama counties (with unverified reports from Butte and Modoc counties).

Clarkia stellata is probably a self-pollinating derivative of C. mildrediae subsp. lutescens, to judge from pollen color. The two species are readily distinguishedby the much smaller flowers of C. stellata and the position of the stigma. Hybrids have low fertility due to chromosomal rearrangement. Clarkia stellata is morphologically very similar to the self-pollinating tetraploid C. rhomboidea but can be distinguished from it by yellow pollen and shallowly lobed, unspotted petals.

(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. Phaeostoma 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. 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. stellata, C. tembloriensis, C. unguiculata, C. virgata, C. williamsonii, C. xantiana
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. rostrata, C. rubicunda, C. similis, C. speciosa, C. springvillensis, C. tembloriensis, C. unguiculata, C. virgata, C. williamsonii, C. xantiana
Name authority Vasek: Madroño 17: 220. (1964) Mosquin: Leafl. W. Bot. 9: 215. (1962)
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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