Jepson eFlora: Taxon page
Key to families | Table of families and genera
Previous taxon Index to accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Next taxon
Lupinus microcarpus var. densiflorus

Higher Taxonomy
Family: Fabaceae (Leguminosae)View DescriptionDichotomous Key

Common Name: LEGUME FAMILY
Habit: Annual to tree. Leaf: generally alternate, generally compound, generally stipuled, generally entire, pinnately veined Inflorescence: generally raceme, spike, umbel or head; or flowers 1--few in axils. Flower: generally bisexual, generally bilateral; hypanthium 0 or flat to tubular; sepals generally 5, generally fused; petals generally 5, free, fused, or lower 2 +- united into keel (see 3, Key to Groups, for banner, wings); stamens 10 or many (or [1], 5, 6, 7, 9), free or fused or 10 with 9 filaments at least partly fused, 1 (uppermost) free; pistil 1, ovary superior, generally 1-chambered, ovules 1--many, style, stigma 1. Fruit: legume, including a stalk-like base (above receptacle) or not. Seed: 1--many, often +- reniform, generally hard, smooth.
Genera In Family: +- 730 genera, 19400 species: worldwide; with grasses, requisite in agriculture, most natural ecosystems. Many cultivated, most importantly Arachis, peanut; Glycine, soybean; Phaseolus, beans; Medicago, alfalfa; Trifolium, clovers; many orns. Note: Unless stated otherwise, fruit length including stalk-like base, number of 2° leaflets is per 1° leaflet. Upper suture of fruit adaxial, lower abaxial. Anthyllis vulneraria L. evidently a waif, a contaminant of legume seed from Europe. Laburnum anagyroides Medik., collected on Mount St. Helena in 1987, may be naturalized. Ceratonia siliqua L., carob tree (Group 2), differs from Gleditsia triacanthos L. in having evergreen (vs deciduous) leaves that are 1-pinnate (vs 1-pinnate on spurs on old stems, 2-pinnate on new stems) with 2--5(8) (vs 7--17) 1° leaflets, commonly cultivated, now naturalized in southern California. Aeschynomene rudis Benth. , Halimodendron halodendron (Pall.) Voss (possibly extirpated), Lens culinaris Medik. are agricultural weeds. Caragana arborescens Lam. only cult. Ononis alopecuroides L. , Sphaerophysa salsula (Pall.) DC. all evidently extirpated. Cercidium moved to Parkinsonia; Chamaecytisus to Cytisus; Psoralidium lanceolatum to Ladeania.
eFlora Treatment Author: Martin F. Wojciechowski, except as noted
Scientific Editor: Martin F. Wojciechowski, Thomas J. Rosatti.
Genus: LupinusView DescriptionDichotomous Key

Common Name: LUPINE
Habit: Annual to shrub; cotyledons generally petioled, withering early. Stem: generally erect. Leaf: palmately compound [or not], generally cauline; stipules fused to petiole; leaflets 3--17, generally oblanceolate, entire. Inflorescence: raceme, flowers spiraled or whorled, occasionally also in lower leaf axils; bracts generally deciduous. Flower: calyx 2-lipped, lobes entire or toothed, generally appendaged between; corolla blue, purple, white, or yellow, banner glabrous to densely hairy, centrally grooved, sides reflexed, wing tips +- fused, keel generally beaked; stamens 10, filaments fused, 5 long with short anthers, 5 short with long anthers; style brush-like. Fruit: dehiscent, generally oblong. Seed: 2--12, generally smooth.
Species In Genus: +- 220 species: especially western North America, western South America to eastern United States, also tropical South America, Mediterranean to western Asia, eastern tropical Africa; some cultivated for fodder, green manure, edible seed, ornamental. Etymology: (Latin: wolf, from mistaken idea that plants rob soil of nutrients) Toxicity: Some (e.g., Lupinus arboreus, Lupinus latifolius, Lupinus leucophyllus) have alkaloids (especially in seeds, fruits, young herbage) TOXIC to livestock (especially sheep). Note: Inflorescence length excludes peduncle; some California species naturalized in eastern North America, South America, Australia, southern Africa.
eFlora Treatment Author: Teresa Sholars
Species: Lupinus microcarpusView Description 

Common Name: CHICK LUPINE
Habit: Annual 1--8 dm, sparsely to densely hairy; cotyledons disk-like, persistent, or leaving circular scar. Stem: clearly hollow, at least below. Leaf: petiole 3--15 cm; leaflets 5--11, generally 9, 10--50 mm, 2--12 mm wide, occasionally linear, adaxially glabrous. Inflorescence: 2--30 cm; peduncle 2--30 cm; pedicels 0.5--5 mm; bracts 3.5--12 mm, reflexed, persistent. Flower: 8--18 mm; calyx upper lip 2--6 mm, lower 5--10 mm, appendages generally 0; petals white to dark yellow, pink to dark rose, or lavender to purple, wings generally ciliate on upper (less often lower) margins near claw, keel upper margins ciliate, lower less so or glabrous near claw. Fruit: erect to spreading, often on 1 side of inflorescence, 1--1.5 cm, +- 10 mm wide, ovate, hairy. Seed: 2, tan to brown, generally mottled, wrinkled or smooth. Chromosomes: 2n=48.
Note: Highly variable; varieties intergrade.

Lupinus microcarpus var. densiflorus (Benth.) Jeps.
NATIVE
Inflorescence: bract short-appressed- to long-spreading-hairy. Flower: calyx +- sparsely appressed- to -spreading-hairy, appendages generally 0; petals generally white to yellow (rose or purple), pink- or lavender-tinged or not, wings oblanceolate, withering, upper margins (rarely lower near claw) generally ciliate, keel lower margins occasionally sparsely ciliate near claw. Fruit: +- spreading, generally on 1 side of axis.
Ecology: Abundant. Open or disturbed areas, occasionally seeded on roadbanks; Elevation: < 1600 m. Bioregional Distribution: NW (exc Siskiyou Co.), SNF, Teh, GV, CW, e SCo, TR, PR, MP, DMtns, DSon. Flowering Time: Apr--Jun
Synonyms: Lupinus densiflorus Benth.; Lupinus densiflorus var. aureus (Kellogg) Munz; Lupinus densiflorus var. lacteus (Kellogg) C.P. Sm. sensu Munz, in part
eFlora Treatment Author: Teresa Sholars
Jepson Online Interchange

Previous taxon: Lupinus microcarpus
Next taxon: Lupinus microcarpus var. horizontalis

Name Search
botanical illustration including Lupinus microcarpus var. densiflorus

Contact/Feedback

Citation for this treatment: Teresa Sholars 2016. Lupinus microcarpus var. densiflorus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=76668, accessed on July 29, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on July 29, 2016.


Lupinus microcarpus var. densiflorus
click for enlargement
© 2009 Barry Rice
Lupinus microcarpus var. densiflorus
click for enlargement
© 2014 Steve Matson
Lupinus microcarpus var. densiflorus
click for enlargement
© 2008 Keir Morse
Lupinus microcarpus var. densiflorus
click for enlargement
© 2008 Keir Morse
Lupinus microcarpus var. densiflorus
click for enlargement
© 2008 Keir Morse
Lupinus microcarpus var. densiflorus
click for enlargement
© 2007 Neal Kramer

More photos of Lupinus microcarpus var. densiflorus in CalPhotos


Geographic subdivisions for Lupinus microcarpus var. densiflorus:
NW (exc Siskiyou Co.), SNF, Teh, GV, CW, e SCo, TR, PR, MP, DMtns, DSon.
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
READ ABOUT YELLOW FLAGS
map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

View elevation by latitude chart
Data provided by the participants of the Consortium of California Herbaria.
View all CCH records

CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.