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Vascular Plants of California
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Allium atrorubens var. cristatum

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.
Species In Genus: 700 species: generally northern temperate, especially California. 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
Species: Allium atrorubensView Description 

Habit: Bulb 10--16 mm, ovoid to +- spheric; outer coat brown, sculpture 0 or cells +- square, in 2--3 rows basally; inner coats pink to white. Stem: 5--17 cm. Leaf: 1, < 2 × stem, cylindric, tip tightly coiled (often breaking off in age or when pressed). Inflorescence: flowers 5--50; pedicels 6--20 mm, > flowers. Flower: 8--12 mm; perianth parts lanceolate to ovate, entire, red-purple or pink (white); ovary crests 6, obvious, triangular, tip entire or notched.

Allium atrorubens var. cristatum (S. Watson) McNeal
Flower: perianth parts +- ovate, acute, pale pink, acute to acuminate, tip margins flat. Chromosomes: n=7.
Ecology: Sands; Elevation: 1200--2100 m. Bioregional Distribution: SNE, DMtns; Distribution Outside California: western Nevada, southwestern Utah. Flowering Time: May--Jun
Synonyms: Allium atrorubens var. inyonis (M.E. Jones) Ownbey & Aase; Allium nevadense S. Watson var. cristatum (S. Watson) Ownbey;
Jepson eFlora Author: Dale W. McNeal
Reference: McNeal & Jacobsen 2002 FNANM 26:224--276
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory

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Citation for this treatment: Dale W. McNeal 2012, Allium atrorubens var. cristatum, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on December 18, 2018.

Citation for the whole project: Jepson Flora Project (eds.) 2018, Jepson eFlora,, accessed on December 18, 2018.

Allium atrorubens var. cristatum
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© 2005 James M. Andre
Allium atrorubens var. cristatum
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© 2011 Steve Matson
Allium atrorubens var. cristatum
click for enlargement
© 2005 Steve Matson
Allium atrorubens var. cristatum
click for enlargement
© 1999 John Game
Allium atrorubens var. cristatum
click for enlargement
© 1999 John Game
Allium atrorubens var. cristatum
click for enlargement
© 2005 Steve Matson

More photos of Allium atrorubens var. cristatum in CalPhotos

Geographic subdivisions for Allium atrorubens var. cristatum:
SNE, DMtns;
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.
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).

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Data provided by the participants of the Consortium of California Herbaria.
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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.