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Vascular Plants of California
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Erythronium californicum


Higher Taxonomy
Family: LiliaceaeView DescriptionDichotomous Key
Common Name: LILY FAMILY
Habit: Perennial herb from membranous bulb or scaly rhizome. Stem: underground or erect, branched or not. Leaf: basal or cauline, alternate, subopposite, or whorled. Inflorescence: raceme, panicle, +- umbel-like or not. Flower: perianth parts 6 in 2 generally petal-like whorls, often showy; stamens 3 or 6, filaments free or +- fused to perianth, anthers attached at base or near middle; ovary superior or +- so, style 1, entire or 3-lobed. Fruit: capsule or berry. Seed: 3--many, flat or angled, brown to black.
Genera In Family: 16 genera, 635 species: northern temperate. Note: Users strongly encouraged to protect plants by working around need to see underground parts in using keys, e.g., by trying both leads in couplets solely dependent on such characters. Muscari botryoides (L.) Mill. an historical waif in California. Other TJM (1993) taxa moved to Agavaceae (Agave, Camassia, Chlorogalum, Hastingsia, Hesperocallis, Hesperoyucca, Leucocrinum, Yucca), Alliaceae (Allium, Ipheion, Nothoscordum), Amaryllidaceae (Amaryllis, Narcissus, Pancratium), Asparagaceae (Asparagus), Asphodelaceae (Aloe, Asphodelus, Kniphofia), Melanthiaceae (Pseudotrillium, Stenanthium, Toxicoscordion, Trillium, Veratrum, Xerophyllum), Nartheciaceae (Narthecium), Ruscaceae (Maianthemum, Nolina), Smilacaceae (Smilax), Tecophilaeaceae (Odontostomum), Themidaceae (Androstephium, Bloomeria, Brodiaea, Dichelostemma, Muilla, Triteleia), and Tofieldiaceae (Triantha). North American species of Disporum now in Prosartes.
eFlora Treatment Author: Dale W. McNeal, except as noted
Scientific Editor: Dale W. McNeal, Thomas J. Rosatti.
Genus: ErythroniumView DescriptionDichotomous Key


Common Name: FAWN LILY
Habit: Bulb elongate of 1--2 fleshy scales, generally with small, bead-like parts of persistent rhizome. Leaf: 2 (1 in non-flowering pl), basal, 6--35 cm, lanceolate to ovate (solitary basal leaf wider), narrowed to petiole, often mottled, glabrous; margin entire to wavy. Inflorescence: peduncled raceme; flowers 1--10; bracts 0. Flower: showy, generally nodding; perianth parts 6, similar, free, +- lanceolate, +- recurved; stamens 6; style 1, straight or bent downward, stigma entire to 3-lobed. Fruit: capsule, ovoid to oblong. Seed: +- ovoid, +- angular, brown. Chromosomes: n=12.
Etymology: (Greek: red, from flowers of some) Note: Leaf, flower markings to be noted when fresh, because of fading in pressed specimens.
eFlora Treatment Author: Geraldine A. Allen & Margriet Wetherwax
Unabridged Reference: Applegate 1935 Madroño 3:58--113; Shevock et al. 1990 Madroño 37:261--273; York et al. 2015 Madroño 62:158--166
Erythronium californicum Purdy
NATIVE
Habit: Bulb 35--60 mm, ovoid. Leaf: 7--15 cm, oblong to narrowly ovate, mottled brown or white. Inflorescence: peduncle 10--30 cm; flowers 1--3. Flower: perianth parts 25--40 mm, +- narrowly ovate, white to cream with yellow base, +- banded brown to red, inner with small sac-like folds at base; stamens 12--25 mm, filaments slender, +- white, anthers +- white to cream; style 10--15 mm, +- white, stigma lobes < 2 mm, spreading.
Ecology: Openings in dry woodland; Elevation: < 1900 m. Bioregional Distribution: KR, NCoR. Flowering Time: Mar--Apr Note: May intergrade with Erythronium citrinum, Erythronium multiscapideum.
Jepson eFlora Author: Geraldine A. Allen & Margriet Wetherwax
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

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botanical illustration including Erythronium californicum

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Citation for this treatment: Geraldine A. Allen & Margriet Wetherwax 2018, Erythronium californicum, in Jepson Flora Project (eds.) Jepson eFlora, Revision 6, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=25172, accessed on April 24, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 24, 2024.

Erythronium californicum
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©2021 Steve Matson
Erythronium californicum
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©2011 Larry Blakely
Erythronium californicum
click for enlargement
©2021 Steve Matson
Erythronium californicum
click for enlargement
©2021 Steve Matson
Erythronium californicum
click for enlargement
©2021 Steve Matson

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Geographic subdivisions for Erythronium californicum:
KR, NCoR.
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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.
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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.
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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 (fruiting time in some monocot genera).