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Erythronium shastense
SHASTA FAWN LILY

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.
Species In Genus: +- 29 species: especially temperate North America. 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 shastense D.A. York, J.K. Nelson, & D.W. Taylor
NATIVE
Habit: Bulb 25--95 mm, slender, ovoid to elongate. Leaf: 12--26 cm, lanceolate to elliptic or ovate, +- wavy-margined, mottled white or brown. Inflorescence: peduncle (13)24--30 cm; flowers 1--3, spreading (nodding). Flower: perianth parts 24--41(45) mm, lanceolate, white with yellow base, +- pink in bud, fading pinkish to purplish, inner with sac-like folds at base on adaxial surfaces; stamens 9--12(16) mm, filaments 5--7(11) mm, 0.2--0.5 mm wide, white to yellowish, anthers yellow; style 8--14 mm, white, generally bent downward, stigma entire to lobed, lobes generally < 2 mm. Fruit: 1.3--3.2 cm.
Ecology: North-facing, shaded limestone outcrops in forest openings; Elevation: 330--1020 m. Bioregional Distribution: e KR. Flowering Time: Feb--Apr
Jepson eFlora 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
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory

Previous taxon: Erythronium revolutum
Next taxon: Erythronium taylorii

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Citation for this treatment: Geraldine A. Allen & Margriet Wetherwax 2018, Erythronium shastense, in Jepson Flora Project (eds.) Jepson eFlora, Revision 6, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=100791, accessed on November 19, 2018.

Citation for the whole project: Jepson Flora Project (eds.) 2018, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on November 19, 2018.


Erythronium shastense
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© 2015 Dana York
Erythronium shastense
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© 2015 Dana York
Erythronium shastense
click for enlargement
© 2014 Julie Kierstead Nelson
Erythronium shastense
click for enlargement
© 2015 Dana York
Erythronium shastense
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© 2015 Len Lindstrand III
Erythronium shastense
click for enlargement
© 2014 Julie Kierstead Nelson

More photos of Erythronium shastense in CalPhotos


Geographic subdivisions for Erythronium shastense:
e KR.
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.
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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).

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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.