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fragrant lupine, orangeflower lupine

Habit Herbs, annual, 1–6 dm, hairs soft, white, sometimes matted, to 2 mm.
Stems

ascending or erect, branched or unbranched.

Leaves

cauline;

petiole 2–7 cm;

leaflets 6–9, blades 15–35 × 3–10 mm, adaxial surface densely pubescent to tomentose.

Racemes

5–25 cm;

flowers spirally arranged, sometimes appearing whorled proximally.

Peduncles

1–9 cm;

bracts deciduous, 2.5–5 mm.

Pedicels

2.5–5 mm, becoming recurved.

Flowers

8.5–12 mm;

calyx 3–5 mm, lobes ± equal, cleft;

corolla golden yellow or white, lower keel margins short-ciliate near claw.

Legumes

1–2 cm, glabrous or glabrate.

Cotyledons

deciduous, petiolate.

Seeds

3–8, resembling bits of granite.

Lupinus citrinus

Distribution
from USDA
California
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

Lupinus citrinus is known from the central Sierra Nevada Foothills.

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

Key
1. Corollas golden yellow.
var. citrinus
1. Corollas white.
var. deflexus
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Lupinus
Sibling taxa
L. adsurgens, L. affinis, L. albicaulis, L. albifrons, L. andersonii, L. angustiflorus, L. antoninus, L. apertus, L. arboreus, L. arbustus, L. arcticus, L. argenteus, L. arizonicus, L. benthamii, L. bicolor, L. brevicaulis, L. breweri, L. cervinus, L. chamissonis, L. concinnus, L. constancei, L. covillei, L. croceus, L. dalesiae, L. diffusus, L. duranii, L. elatus, L. elmeri, L. excubitus, L. flavoculatus, L. formosus, L. fulcratus, L. gracilentus, L. grayi, L. guadalupensis, L. havardii, L. hirsutissimus, L. huachucanus, L. hyacinthinus, L. kingii, L. kuschei, L. lapidicola, L. latifolius, L. lepidus, L. leucophyllus, L. littoralis, L. longifolius, L. ludovicianus, L. luteolus, L. magnificus, L. malacophyllus, L. microcarpus, L. nanus, L. neomexicanus, L. nevadensis, L. nipomensis, L. nootkatensis, L. obtusilobus, L. odoratus, L. onustus, L. oreganus, L. pachylobus, L. padrecrowleyi, L. peirsonii, L. perennis, L. polyphyllus, L. pratensis, L. pusillus, L. rivularis, L. sabineanus, L. sericatus, L. sericeus, L. shockleyi, L. sierrae-blancae, L. sparsiflorus, L. spectabilis, L. stiversii, L. subcarnosus, L. succulentus, L. sulphureus, L. texensis, L. tidestromii, L. tracyi, L. truncatus, L. uncialis, L. villosus, L. westianus
Subordinate taxa
L. citrinus var. citrinus, L. citrinus var. deflexus
Name authority Kellogg: Proc. Calif. Acad. Sci. 7: 93. (1877)
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