OregonFlora: Erythronium idahoense vs. Erythronium grandiflorum ssp. grandiflorum

	Erythronium idahoense	Erythronium grandiflorum var. grandiflorum (synonym of Erythronium grandiflorum ssp. grandiflorum)
		glacier-lily, yellow fawn-lily
Leaves		5–20 cm; blades lanceolate, not mottled; margins wavy.
Inflorescences		1(3)-flowered.
Flowers		tepals 20–35 mm, yellow; pale at base; inner tepals with auricles at base; stamens 10–18 mm; filaments, linear; less than 1 mm wide, white; anthers cream to yellow to purple-red; style white; stigma with recurved lobes (1)2–4 mm long.
Fruits		capsules 2–5 cm.
2n		=24.

	Erythronium idahoense	Erythronium grandiflorum var. grandiflorum
Distribution		[BONAP county map]
Discussion		Subalpine meadows, woods, rock outcrops. Flowering Mar–Jul. 0–2300m. BW, Casc, Col, CR, ECas, Lava, Sisk. CA, ID, WA; north to British Columbia and Alberta, southeast to NM. Native. As the common name implies, this lily is often found emerging from melting snow in subalpine meadows.
Source		Flora of Oregon, volume 1, page 298 Stephen Meyers
Sibling taxa	E. citrinum, E. elegans, E. grandiflorum, E. hendersonii, E. hendersonii x Erythronium oregonum, E. klamathense, E. montanum, E. multiscapideum, E. oregonum, E. revolutum	E. grandiflorum var. grandiflorum
Synonyms		Erythronium grandiflorum ssp. grandiflorum, Erythronium grandiflorum var. pallidum, Erythronium parviflorum
Web links	Local floras: WA Local Web sites: Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Erythronium idahoense

Erythronium grandiflorum var. grandiflorum

(synonym of Erythronium grandiflorum ssp. grandiflorum)

glacier-lily, yellow fawn-lily

Leaves

5–20 cm;

blades lanceolate, not mottled;

margins wavy.

Inflorescences

1(3)-flowered.

Flowers

tepals 20–35 mm, yellow; pale at base;

inner tepals with auricles at base;

stamens 10–18 mm; filaments, linear; less than 1 mm wide, white;

anthers cream to yellow to purple-red;

style white;

stigma with recurved lobes (1)2–4 mm long.

Fruits

capsules 2–5 cm.

=24.

Erythronium idahoense

Erythronium grandiflorum var. grandiflorum

Distribution

[BONAP county map]

Discussion

Subalpine meadows, woods, rock outcrops. Flowering Mar–Jul. 0–2300m. BW, Casc, Col, CR, ECas, Lava, Sisk. CA, ID, WA; north to British Columbia and Alberta, southeast to NM. Native.

As the common name implies, this lily is often found emerging from melting snow in subalpine meadows.

Source

Flora of Oregon, volume 1, page 298
Stephen Meyers

Sibling taxa