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Vascular Plants of California
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Holodiscus discolor var. glabrescens


Higher Taxonomy
Family: RosaceaeView DescriptionDichotomous Key
Common Name: ROSE FAMILY
Habit: Annual to tree, glandular or not. Leaf: simple to palmately or pinnately compound, generally alternate; stipules free to fused (0), persistent to deciduous. Inflorescence: cyme, raceme, panicle, cluster, or flowers 1; bractlets on pedicel ("pedicel bractlets") generally 0--3(many), subtended by bract or generally not. Flower: generally bisexual, radial; hypanthium free or fused to ovary, saucer- to funnel-shaped, subtending bractlets ("hypanthium bractlets") 0--5, alternate sepals; sepals generally 5; petals generally 5, free; stamens (0,1)5--many, anther pollen sacs generally 2; pistils (0)1--many, simple or compound, ovary superior to inferior, styles 1--5. Fruit: 1--many per flower, achene (fleshy-coated or not), follicle, drupe, or pome with generally papery core, occasionally drupe-like with 1--5 stones. Seed: generally 1--5 (per fruit, not per flower).
Genera In Family: 110 genera, +- 3000 species: worldwide, especially temperate; many cultivated for ornamental, fruit, especially Cotoneaster, Fragaria, Malus, Prunus, Pyracantha, Rosa, Rubus. Note: Number of teeth is per leaf or leaflet, not per side of leaf or leaflet, except in Drymocallis.
eFlora Treatment Author: Daniel Potter & Barbara Ertter, family description, key to genera, treatment of genera by Daniel Potter, except as noted
Scientific Editor: Daniel Potter, Thomas J. Rosatti.
Genus: HolodiscusView Description 

Habit: Shrub, +- hairy. Leaf: simple, alternate, toothed; stipules 0. Inflorescence: raceme or panicle, terminal, many-flowered, persistent; pedicels slender, bractlets 1--3, linear. Flower: hypanthium saucer-shaped, prominent nectary-disk below inner rim, bractlets 0; petals generally white; stamens 15--20; pistils 5, ovaries superior, 2-ovuled, hairs dense, bristle-like, persistent in fruit, style persistent, stigma +- 2-lobed. Fruit: achenes 5.
Species In Genus: 3--5 species: western North America, Central America, northern South America. Etymology: (Greek: whole disk)
eFlora Treatment Author: Daniel Potter
Species: Holodiscus discolorView DescriptionDichotomous Key


Common Name: OCEANSPRAY
Habit: Plant 0.3--6 m. Stem: bark +- red, in age gray, shredding; twigs glabrous to hairy, occasionally glandular. Leaf: 0.3--8 cm, ovate to obovate, strong-veined abaxially, glabrous to hairy, occasionally glandular, teeth entire to compound; base truncate to wedge-shaped; petiole distinct or not. Inflorescence: 2--25 cm, 1.5--25 cm wide. Flower: hypanthium 3--5 mm wide; sepals 1--2 mm; petals 1.5--2 mm; style 1 mm. Fruit: achenes 1--1.5 mm, often with sessile glands.
Note: Highly variable; varieties intergrade.
Unabridged Note: Highly variable; varieties intergrade, especially. var. discolor and var. microphyllus. Intermediate plants from SNH, SNE, described as Holodiscus saxicola A. Heller, Holodiscus boursieri (Carrière) Rehder, do not merit taxonomic status.
Holodiscus discolor var. glabrescens (Greenm.) Jeps.
NATIVE
Habit: Plant 0.3--1 m, +- dense. Stem: twigs glabrous to puberulent; glands 0 or generally visible. Leaf: petiole generally indistinct; blade 0.3--3 cm, round to obovate, both surfaces glabrous to puberulent, hairs much longer on margins, veins, glands visible, teeth entire, above middle, base generally wedge-shaped. Inflorescence: generally 2--8 cm, 1.5--5 cm wide; branches 0--few.
Ecology: Rocky places, outcrops; Elevation: 600--3020 m. Bioregional Distribution: CaRH, NCoRH (Mendocino Co.), MP; Distribution Outside California: to Oregon, Utah. Flowering Time: Jun--Aug
Synonyms: Holodiscus microphyllus Rydb. var. glabrescens (Greenm.) F.A. Ley
Jepson eFlora Author: Daniel Potter
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Citation for this treatment: Daniel Potter 2012, Holodiscus discolor var. glabrescens, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=60050, accessed on October 15, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on October 15, 2019.

No expert verified images found for Holodiscus discolor var. glabrescens.



Geographic subdivisions for Holodiscus discolor var. glabrescens:
CaRH, NCoRH (Mendocino Co.), MP
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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).





 

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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.