Flora of North America species comparison

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Lilium humboldtii subsp. humboldtii
Photo is of parent taxon

Humboldt's lily
Bulbs

off white, occasionally flecked with purple;

scales unsegmented;

stem roots absent.
Racemes

1–33(–40)-flowered.
Flowers

sepals and petals orange, with magenta spots distributed distally or more proximally;

pollen rust, rust-brown, rust-orange, occasionally to warm tan, becoming yellowish.

Lilium humboldtii subsp. humboldtii
Phenology Flowering summer (mid Jun–early Aug).
Habitat Ponderosa pine (Pinus ponderosa P. & C. Douglas) forest and chaparral openings
Elevation 600–1100 m (2000–3600 ft)
Distribution
from FNA
CA
[BONAP county map]
Discussion

Subspecies humboldtii is distributed from Tehama County south to Calaveras County; reports from farther south are erroneous. An anomalous population documented by A. A. Heller early in the twentieth century as occurring near the Sacramento River at valley elevations (ca. 100 m) in Butte County is unconfirmed and unlikely to be relocated.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 26, p. 181.
Parent taxa Liliaceae > Lilium > Lilium humboldtii
Sibling taxa
L. humboldtii subsp. ocellatum
Synonyms L. bloomerianum, L. canadense var. humboldtii, L. canadense var. puberulum
Name authority unknown
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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