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Vascular Plants of California
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Allium amplectens

Higher Taxonomy
Family: AlliaceaeView DescriptionDichotomous Key
Habit: Perennial herb; bulb 1 or on rhizomes, reforming each year; bulblets at bulb bases or on rhizomes; outer bulb coat brown, red-brown, yellow-brown, or gray; inner coats generally white (pink, red, or yellow); onion odor, taste present (except Nothoscordum). Stem: scapose, cylindric, sometimes flat or triangular. Leaf: basal, sheathing stem, linear [or not], cylindric, channeled or flat, generally +- withering from tip by flowering. Inflorescence: umbel (1-flowered in Ipheion), bracts generally 2, splitting and appearing 2+ or not, +- fused, enclosing flower buds, scarious. Flower: perianth parts 6 in 2 petal-like whorls, +- free to fused in lower 1/3--1/2; stamens 6, fused to perianth, filaments widened at base, anthers attached at middle; ovary superior, 3-lobed, chambers 3, ovules 2+ per chamber, style 1, stigma entire or +- 3-lobed. Fruit: capsule, loculicidal. Seed: black, sculpture net-like, smooth, or granular.
Genera In Family: 13 genera, 750--800 species: worldwide. Note: Many cultivated for food, ornamental.
eFlora Treatment Author: Dale W. McNeal
Scientific Editor: Thomas J. Rosatti.
Genus: AlliumView DescriptionDichotomous Key

Common Name: ONION, GARLIC
Habit: Outer bulb coat generally brown to gray, inner generally white. Stem: scapose, cylindric, triangular in ×-section, or flat. Leaf: basal, 1--5[12] per stem, linear, cylindric, channeled, or flat, generally withering from tip before flower. Inflorescence: umbel, flowers 3--many, rarely all or in part replaced by bulblets; bracts generally 2--4, obvious, +- fused, scarious. Flower: perianth parts +- free, generally with darker or contrasting midvein, outer generally wider; filaments fused into a ring; ovary with 0, 3, or 6 crests, ovules generally 2 per chamber. Seed: obovoid, generally unappendaged.
Etymology: (Latin: garlic) Note: Replanting bulbs after study essential for survival of pl; shape, arrangement of cells of outer bulb coat (outer bulb coat sculpture) generally important in identification, generally determined only with magnification; color of outer bulb coat may be masked by substrate; stem lengths from top of bulb to base of inflorescence, not from substrate surface.
Reference: McNeal & Jacobsen 2002 FNANM 26:224--276
Allium amplectens Torr.
Habit: Bulb 6--15 mm, ovoid to +- spheric; outer coat cells transversely elongate, in obscure, wavy herringbone pattern; inner coats generally red. Stem: 15--50 cm. Leaf: 2--4, < stem, +- cylindric. Inflorescence: flowers 10--50; pedicels 4--16 mm. Flower: 5--9 mm; perianth parts ascending to +- erect, lanceolate, white to pink, in fruit folded over ovary; ovary crests 6, +- obvious, lateral. Chromosomes: n=7,14; 2n=21.
Ecology: Clays including serpentine, open or wooded places; Elevation: < 1800 m. Bioregional Distribution: CA-FP, Wrn; Distribution Outside California: to British Columbia. Flowering Time: Apr--Jul
Synonyms: Allium acuminatum Hooker var. gracile Alph. Wood; Allium attenuifolium Kellogg; Allium attenuifolium var. monospermum (Jeps.) Jeps.; Allium monospermum Jeps.; Allium occidentale A. Gray; Allium serratum S. Watson
Jepson eFlora Author: Dale W. McNeal
Reference: McNeal & Jacobsen 2002 FNANM 26:224--276
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

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Botanical illustration including Allium amplectens

botanical illustration including Allium amplectens


Citation for this treatment: Dale W. McNeal 2012, Allium amplectens, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on January 30, 2023.

Citation for the whole project: Jepson Flora Project (eds.) 2023, Jepson eFlora,, accessed on January 30, 2023.

Allium amplectens
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© 2004 George W. Hartwell
Allium amplectens
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© 2010 George W. Hartwell
Allium amplectens
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© 2010 Keir Morse
Allium amplectens
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© 2022 Neal Kramer
Allium amplectens
click for enlargement
© 2022 Neal Kramer
Allium amplectens
click for enlargement
© 2010 George W. Hartwell

More photos of Allium amplectens in CalPhotos

Geographic subdivisions for Allium amplectens:
CA-FP, Wrn
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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).


Data provided by the participants of the  Consortium of California Herbaria.
View all CCH records
All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.

CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time (fruiting time in some monocot genera).