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Lake Almanor clarkia, lake amador clarkia

Stems

erect, to 40 cm, glabrous or puberulent.

erect, to 100 cm, puberulent.

Leaves

petiole 5–25 mm;

blade lanceolate to elliptic or ovate, 1–4.5 cm.

petiole 5–30 mm;

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

Inflorescences

racemes, axis suberect or slightly recurved;

buds pendent.

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

buds pendent, narrowly obovoid, tip acute.

Flowers

floral tube 13–25 mm;

sepals reflexed together to 1 side, sometimes nearly separating, petal-like, pink or red;

corolla rotate, petals bright pink, usually white-streaked, narrowly fan-shaped, 10–30 mm, length 2 times width, tapered to a ± distinct claw, lobes ± equal or middle lobe wider, usually oblanceolate;

stamens 4, filaments not wider distally;

ovary 8-grooved;

stigma exserted or not 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

15–20 mm;

sessile.

20–25 mm;

pedicel 1–3 mm.

Seeds

reddish brown, 2–3 mm, scaly, crest to 0.8 mm, conspicuous.

unknown.

2n

= 14.

Clarkia concinna

Clarkia stellata

Phenology Flowering Jun–Jul.
Habitat Open coniferous forests.
Elevation 1000–1500 m. (3300–4900 ft.)
Distribution
from USDA
California
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Subspecies 3 (3 in the flora).

The two self-pollinating subspecies with smaller flowers probably arose independently from the outcrossing subsp. concinna.

(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.)

Key
1. Stigmas exserted beyond anthers; petals 15–30 mm.
subsp. concinna
1. Stigmas not exserted beyond anthers; petals 10–20 mm.
→ 2
2. Sepals remaining connate only near tip; petal lobes prominent, blades gradually tapered to distinct claw.
subsp. automixa
2. Sepals remaining connate in distal 2/3; petal lobes short, blades abruptly tapered to inconspicuous claw.
subsp. raichei
Source FNA vol. 10. FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Eucharidium 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. 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
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
Subordinate taxa
C. concinna subsp. automixa, C. concinna subsp. concinna, C. concinna subsp. raichei
Synonyms Eucharidium concinnum
Name authority (Fischer & C. A. Meyer) Greene: Pittonia 1: 140. (1887) Mosquin: Leafl. W. Bot. 9: 215. (1962)
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