Flora of North America species comparison

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Clarkia mosquinii

Clarkia lassenensis

Mosquin's clarkia

Lassen clarkia, Lassen clarkia or godetia, Mount Lassen godetia, Mt. Lassen clarkia, Mt. Lassen fairy-fan
Stems

erect, to 100 cm, puberulent.

erect, to 90 cm, puberulent.
Leaves

petiole 10–30 mm;

blade linear-lanceolate to ovate or elliptic, 2–5 cm.

petiole to 10 mm;

blade linear to narrow 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.

racemes, axis recurved at tip in bud;

buds pendent.
Flowers

floral tube 2–5 mm;

sepals reflexed individually;

corolla rotate, petals lavender-purple, often with darker spots, ± rhombic, unlobed, 10–20 × 6–13 mm, length 1.5–2 times width;

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

ovary shallowly 4-grooved;

stigma exserted beyond anthers.

floral tube 3–5 mm;

corolla bowl-shaped, petals pinkish lavender shading lighter proximally, with reddish purple base, broadly obovate, 8–16 mm;

stamens 8, subequal;

ovary 8-grooved, densely puberulent;

stigma not exserted beyond anthers.
Capsules

15–25 mm;

pedicel 0–3 mm.

25–40 mm;

pedicel 0–3 mm.
Seeds

brown or gray, 0.9–1.2 mm, scaly.

light brown or mottled with dark spots, 1.5 mm, minutely tuberculate, crest 0.2 mm.
2n

= 12.

= 14.

Clarkia mosquinii

Clarkia lassenensis
Phenology Flowering Jun–Jul. Flowering May–Jun.
Habitat Yellow-pine forests. Woodlands, conifer forests.
Elevation 200–300 m. (700–1000 ft.) 500–2000 m. (1600–6600 ft.)
Distribution
from FNA
CA
[BONAP county map]
from FNA
CA; NV; OR
[WildflowerSearch map]
[BONAP county map]
Discussion

Clarkia mosquinii is known only from a small area in the Feather River drainage at the northern limits of the Sierra Nevada range in Butte and (barely) Plumas counties; it is listed as rare by the California Native Plant Society.

Clarkia mosquinii is closely related to C. borealis and may be a derivative of that species with a reduced chromosome number. In addition to chromosome number, they differ in geographical distribution and shape of the buds, which are blunt at the tip in C. mosquinii and acute or acuminate in C. borealis. Clarkia mosquinii is also closely related, and probably ancestral, to two species with 2n = 10, C. australis and C. virgata, which have more southern distributions.

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

Clarkia lassenensis is found primarily in the northeastern counties of California, south-central counties of Oregon, and northwestern counties of Nevada, with a few outlier collections from Alpine and Placer counties in the Sierra Nevada, and from northern Mendocino and Glenn counties in the North Coast Ranges.

Clarkia lassenensis is morphologically most similar to C. arcuata and C. gracilis. At one time, C. lassenensis was considered a probable parent of the tetraploid C. gracilis but cytogenetic and molecular sequence data indicate that an unknown related species, presumably now extinct, was involved. Clarkia lassenensis can be distinguished readily from C. arcuata by flower size, position of the stigma, and pubescence of the immature capsule, and from C. gracilis by having immature capsules with eight grooves rather than four.

(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. Myxocarpa Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Rhodanthos > subsect. Flexicaules
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. 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. 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. 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. mosquinii subsp. xerophylla Godetia lassenensis
Name authority E. Small: Canad. J. Bot. 49: 1216, fig. 4A,B. (1971) (Eastwood) H. Lewis & M. E. Lewis: Madroño 12: 33. (1953)
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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