FNA: Pterospora andromedea

	Pterospora andromedea
	pine-drops, ptérospore andromeda, woodland pinedrops
Inflorescences	1.5–17 dm, glandular-hirsute; bracts 2–3.5 × 0.5–1 cm, scarious at maturity.
Flowers	sepals 4–6 × 2–3 mm; corolla 6–9 mm, base not saccate, lobes reflexed, rounded to blunt; stamens 3–5 mm; anthers horizontal at anthesis, ca. 1 mm diam., awns to 1.5 mm; ovary 3–4 × 4–6 mm, glabrous; style 1–3 × 1 mm; stigma yellowish, ca. 1.5 mm diam.
Capsules	persistent, thin-segmented, remaining connate at apex, 5–10 × 7–14 mm.
Seeds	0.2–0.5 mm including wing.
2n	= 16, 48.

	Pterospora andromedea
Phenology	Flowering summer.
Habitat	Moist to dry, often deep humus of mixed-deciduous or coniferous forests (sometimes on calcareous substrates)
Elevation	60-3700 m (200-12100 ft)
Distribution	AK; AZ; CA; CO; ID; MI; MT; NE; NH; NM; NV; NY; OR; SD; TX; UT; VT; WA; WY; AB; BC; NB; ON; PE; QC; SK; Mexico (Chihuahua, Durango, Nuevo León) [WildflowerSearch map] [BONAP county map]
Source	FNA vol. 8, p. 389.
Parent taxa	Ericaceae > subfam. Monotropoideae > Pterospora
Name authority	Nuttall: Gen. N. Amer. Pl. 1: 269. 1818 ,
Web links	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, Go Botany, MI Flora, PNW Herbaria, SW CO Wildflowers, Turner Photog. WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

pine-drops, ptérospore andromeda, woodland pinedrops

Inflorescences

1.5–17 dm, glandular-hirsute;

bracts 2–3.5 × 0.5–1 cm, scarious at maturity.

Flowers

sepals 4–6 × 2–3 mm;

corolla 6–9 mm, base not saccate, lobes reflexed, rounded to blunt;

stamens 3–5 mm;

anthers horizontal at anthesis, ca. 1 mm diam., awns to 1.5 mm;

ovary 3–4 × 4–6 mm, glabrous;

style 1–3 × 1 mm;

stigma yellowish, ca. 1.5 mm diam.

Capsules

persistent, thin-segmented, remaining connate at apex, 5–10 × 7–14 mm.

Seeds

0.2–0.5 mm including wing.

= 16, 48.

Phenology

Flowering summer.

Habitat

Moist to dry, often deep humus of mixed-deciduous or coniferous forests (sometimes on calcareous substrates)

Elevation

60-3700 m (200-12100 ft)

Distribution

AK; AZ; CA; CO; ID; MI; MT; NE; NH; NM; NV; NY; OR; SD; TX; UT; VT; WA; WY; AB; BC; NB; ON; PE; QC; SK; Mexico (Chihuahua, Durango, Nuevo León)

Source

Parent taxa

Name authority

Nuttall: Gen. N. Amer. Pl. 1: 269. 1818 ,

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).

Choose a data source: Flora of North America, OregonFlora, UW Burke Herbarium

The species comparison tool is brought to you by:

Flora of North America species comparison