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arewell-to-spring, farewell-to-spring, farewell-to-spring clarkia, godetia, yellow clarkia

Temblor Range clarkia

Stems

erect to decumbent, 20–200 cm, puberulent.

erect, to 80 cm, glabrous, glaucous.

Leaves

petiole to 10 mm;

blade linear to lanceolate, 1–6 cm.

petiole 0–5 mm;

blade gray-green, lanceolate, 2–7 cm, surfaces glaucous.

Inflorescences

open or dense spikes or racemes, axis straight;

buds erect.

open racemes, axis erect;

buds pendent.

Flowers

floral tube 3–10 mm;

sepals usually reflexed together to one side, or rarely in pairs or singly;

corolla bowl-shaped, petals pale pink to lavender, usually with red spot or mark near middle, obovate to fan-shaped, 15–60 mm, not lobed, apex sometimes shallowly notched or erose;

stamens 8, in 2 subequal sets;

ovary cylindrical and 4-grooved or fusiform and 8-grooved, puberulent;

stigma exserted or not beyond anthers.

floral tube 2–3 mm;

sepals reflexed together to 1 side, green, red-tinged or not, sparsely to densely puberulent abaxially, without longer, spreading hairs;

corolla rotate, petals lavender-pink, spot purplish or absent, ± diamond-shaped, 10–25 mm, claw slender, equal to or longer than blade, entire;

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

ovary with hairs as on sepals;

stigma exserted or not beyond anthers.

Capsules

15–40 mm, sometimes broader distally;

pedicel 0–13 mm.

15–30 mm.

Seeds

brown to grayish brown, 1–1.5 mm, scaly, crest 0.1 mm.

unknown.

Clarkia amoena

Clarkia tembloriensis

Distribution
from USDA
w North America
[WildflowerSearch map]
[BONAP county map]
from USDA
California
[WildflowerSearch map]
[BONAP county map]
Discussion

Subspecies 5 (5 in the flora).

Clarkia amoena is closely related to C. rubicunda, which differs morphologically mainly in the color pattern of the petals. Petals of C. amoena have a conspicuous red spot or group of small red spots or marks near the middle, whereas those of C. rubicunda have a red area at the base and are not spotted near the middle. The areas of distribution of the two species barely overlap in California just north of San Francisco Bay, and C. rubicunda could be considered a southern geographical race or subspecies of C. amoena were it not that their readily formed hybrids are sterile due to chromosomal rearrangement. Clarkia amoena is one of the parent species of the allotetraploid C. gracilis. Intermediates between subspecies are frequent.

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

Subspecies 2 (2 in the flora).

Clarkia tembloriensis is derived from C. unguiculata and is closely related to C. exilis and C. springvillensis. Hybrids between the subspecies of C. tembloriensis have low fertility and the two taxa are rarely found together.

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

Key
1. Stigmas not exserted beyond anthers; petals less than 20 mm; coastal British Columbia, Oregon, Washington.
subsp. caurina
1. Stigmas exserted beyond anthers; petals 15–60 mm.
→ 2
2. Ovaries 8-grooved, broadly fusiform, 8–12 mm wide.
subsp. whitneyi
2. Ovaries 4-grooved, cylindrical to subclavate, 2–6 mm wide.
→ 3
3. Inflorescences open, internodes longer than subtending flowers, bracts sublinear.
subsp. huntiana
3. Inflorescences congested, internodes shorter than subtending flowers, bracts narrowly lanceolate or wider.
→ 4
4. Stems decumbent to suberect, to 100 cm; petals 20–35 mm, usually with red spot mid blade; coastal California.
subsp. amoena
4. Stems erect, to 200 cm; petals 30–40 mm, usually without red spot or with very small spot or streak mid blade; inland Oregon, Washington.
subsp. lindleyi
1. Petals usually less than 10 mm wide; stigmas exserted beyond anthers or not.
subsp. tembloriensis
1. Petals about 10 mm wide; stigmas not exserted beyond anthers.
subsp. calientensis
Source FNA vol. 10. FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Rhodanthos > subsect. Primigenia Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Phaeostoma > subsect. Phaeostoma
Sibling taxa
C. affinis, 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. 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. stellata, C. unguiculata, C. virgata, C. williamsonii, C. xantiana
Subordinate taxa
C. amoena subsp. amoena, C. amoena subsp. caurina, C. amoena subsp. huntiana, C. amoena subsp. lindleyi, C. amoena subsp. whitneyi
C. tembloriensis subsp. calientensis, C. tembloriensis subsp. tembloriensis
Synonyms Oenothera amoena, Godetia amoena
Name authority (Lehmann) A. Nelson & J. F. Macbride: Bot. Gaz. 65: 62. (1918) Vasek: Madroño 17: 220. (1964)
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