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Pterospora andromedea

Higher Taxonomy
Family: EricaceaeView DescriptionDichotomous Key

Habit: Perennial herb, shrub, tree. Stem: bark often peeling distinctively. Leaf: simple or 0, generally cauline, alternate, opposite (whorled), evergreen or deciduous, often leathery, petioled or not; stipules 0. Inflorescence: raceme, panicle, cyme, or flowers 1, terminal or axillary, generally bracted; pedicel often with 2 bractlets. Flower: generally bisexual, generally radial, bell-shaped, cylindric, or urn-shaped; sepals generally (0)4--5, generally free; petals generally (0)4--5, free or fused; stamens (2--5)8--10, free, filaments rarely appendaged, anthers dehiscing by pores or slits, awns 0 or 2(4), seemingly abaxial, reduced or elongate, generally curved; nectary generally present at ovary base, generally disk-like; ovary superior or inferior, chambers generally 1--5, placentas axile or parietal, ovules 1--many per chamber, style 1, stigma head- to funnel-like or lobed. Fruit: capsule, drupe, berry. Seed: generally many, winged or not.
Genera In Family: +- 100 genera, 3000 species: generally worldwide except deserts; some cultivated, especially Arbutus, Arctostaphylos, Rhododendron, Vaccinium. Note: Monophyletic only if Empetraceae included, as treated here. Ledum included in Rhododendron. Non-green plants obtain nutrition from green plants through fungal intermediates.
eFlora Treatment Author: Gary D. Wallace, except as noted
Scientific Editor: Gary D. Wallace, Thomas J. Rosatti, Bruce G. Baldwin.
Genus: PterosporaView Description 

Common Name: PINEDROPS

Species In Genus: 1 sp. Etymology: (Greek: winged seed)
eFlora Treatment Author: Gary D. Wallace

Pterospora andromedea Nutt.
Habit: Perennial herb, non-green, +- pink, brown in age, densely sticky-glandular; roots brittle. Stem: 0. Leaf: 0. Inflorescence: raceme, 1.5--17 dm, pink to +- red, emerging from ground erect, persistent after seed dispersal, bracted, axis < 1.5 cm wide just below lowest flower; bractlets 0. Flower: pendent; sepals 5, free; corolla urn-shaped, petals 5, +- 4/5 fused, 6--9 mm, cream to +- yellow, lobes recurved; stamens 10, anthers dehiscing by separate slits, awned; ovary superior, chambers 5, placentas axile, style < 3 mm, jointed to ovary, stigma generally 1.5 mm wide, disk-like. Fruit: capsule, pendent, < 1.3 cm wide, loculicidal, dehiscing base to tip. Seed: many per chamber, < 0.2 mm wide, ovate; wing terminal, < 1 mm wide, membranous.
Ecology: Mixed or conifer forest; Elevation: 60--3700 m. Bioregional Distribution: KR, NCoRH, CaR, SNH, Teh, TR, PR, MP, SNE (exc W&I); Distribution Outside California: to British Columbia, Mexico; also eastern North America. Flowering Time: Jun--Aug
eFlora Treatment Author: Gary D. Wallace
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botanical illustration including Pterospora andromedea


Citation for this treatment: Gary D. Wallace 2012, Pterospora andromedea, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on September 23, 2018.

Citation for the whole project: Jepson Flora Project (eds.) 2018, Jepson eFlora,, accessed on September 23, 2018.

Pterospora andromedea
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© 2009 Thomas Stoughton
Pterospora andromedea
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© 2009 California Academy of Sciences
Pterospora andromedea
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© 2009 California Academy of Sciences
Pterospora andromedea
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© 2009 Barry Breckling
Pterospora andromedea
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© 2004 George W. Hartwell
Pterospora andromedea
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© 1984 Gary A. Monroe

More photos of Pterospora andromedea in CalPhotos

Geographic subdivisions for Pterospora andromedea:
KR, NCoRH, CaR, SNH, Teh, TR, PR, MP, SNE (exc W&I);
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.
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).

View elevation by latitude chart
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.