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Cascade lily, Mount Hood lily, Shasta lily, Washington lily


subrhizomatous to ± ovoid, 2.7–10 × 4.4–13.4 cm, 0.2–0.9(–1.4) times taller than long;

scales unsegmented or notched with 2(–3) poorly defined segments, sometimes 2-segmented, longest 3.3–11.9 cm;

stem roots absent.


to 2 m, often glaucous.


rounded in cross section.


in 1–8 whorls or partial whorls, 3–16 leaves per whorl, horizontal and drooping at tips to ascending, occasionally nearly clasping stem, 3.7–12.3 × 0.9–4.7 cm, 2–6.5 times longer than wide;

blade oblanceolate, sometimes obovate, rarely elliptic, margins undulate or not, apex acute, often widely so;

veins and margins ± smooth abaxially.


racemose, 1–33-flowered.


opening before dusk, ± horizontal, slightly bilaterally symmetric, strongly fragrant;

perianth ± funnelform;

sepals and petals recurved 2/3–3/4 along length from base and scarcely overlapping to form tube, lower usually less recurved than upper and forming landing platform, white, often aging deep pink or lavender, often with short yellowish stripe extending from basal median nectaries, often with fine magenta spots concentrated basally, not distinctly clawed;

sepals sometimes purplish abaxially, not ridged abaxially, (6.1–)6.7–11.3 × 0.9–1.7 cm;

petals noticeably wider than sepals, oblanceolate and often very wide distally, (6.1–)6.6–11.2 × 1.1–2.4 cm, apex widely acute, obtuse, or rounded;

stamens barely exserted;

filaments barely spreading, diverging 2°–8° from axis;

anthers off white or cream, becoming pale pink or yellow, 0.8–1.5 cm;

pollen yellow or cream;

pistil 7.5–10.4 cm;

ovary 1.7–3.4 cm;

style pale green;

pedicel 4.8–15 cm.


often with 6 longitudinal ridges, 2.7–5.8 × 1.6–2.9 cm, 1.3–2.3 times longer than wide.



Lilium washingtonianum

from FNA
[WildflowerSearch map]
[BONAP county map]

Subspecies 2 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

1. Sepals and petals aging light pink or remaining white; bulbs sometimes (36%) without notched or segmented scales; sepals 8–11.3 cm; Sierra Nevada and s Cascades of California.
L. washingtonianum subsp. washingtonianum
1. Sepals and petals aging deep pink or lavender; bulbs usually (88%) with some notched or segmented scales; sepals (6.1–)6.7–9.5 cm; mountains of n California and Oregon.
L. washingtonianum subsp. purpurascens
Source FNA vol. 26, p. 182.
Parent taxa Liliaceae > Lilium
Sibling taxa
L. bolanderi, L. canadense, L. catesbaei, L. columbianum, L. grayi, L. humboldtii, L. iridollae, L. kelleyanum, L. kelloggii, L. lancifolium, L. maritimum, L. michauxii, L. michiganense, L. occidentale, L. pardalinum, L. parryi, L. parvum, L. philadelphicum, L. pyrophilum, L. rubescens, L. superbum
Subordinate taxa
L. washingtonianum subsp. purpurascens, L. washingtonianum subsp. washingtonianum
Name authority Kellogg: Hesperian (San Francisco) 3: 340. (1859)
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