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Vascular Plants of California
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Adenostoma fasciculatum var. fasciculatum


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 ornament, 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: AdenostomaView DescriptionDichotomous Key

Habit: Shrub, small tree, +- resinous. Stem: bark shredding. Leaf: simple, alternate, clustered or not, evergreen, short-petioled, stipuled or not, linear to oblanceolate or sickle-shaped, stiff or flexible. Inflorescence: panicle, terminal, 0.5--17 cm, many-flowered; pedicel bractlets generally present, lanceolate to elliptic. Flower: hypanthium 0.6--3.2 mm, throat obconic, glandular, persistent, +- enclosing fruit, bractlets 0; petals 1.5--2.5 mm; calyx lobes 1--1.5 mm; corolla lobes +- round, cream to white; stamens 10--15, in 5 groups of 2 or 3, alternate petals; ovary superior, chamber 1, ovules 1--2. Fruit: achene-like. Chromosomes: 2n=18.
Etymology: (Greek: glandular mouth, from hypanthium ring gland)
eFlora Treatment Author: William Jones
Species: Adenostoma fasciculatumView Description 


Common Name: CHAMISE, GREASEWOOD
Habit: Plant < 4 m, burled, much-branched. Stem: trunk bark gray-brown. Leaf: clustered, sickle-shaped or not, glabrous to puberulent, stiff; stipules < 1.5 mm. Inflorescence: dense to open; pedicels 0--1.1 mm, bractlets 1--3, not enclosing buds, 3-lobed, lanceolate to narrow-elliptic, not translucent. Flower: hypanthium 0.8--3.2 mm, strongly 10-ribbed; calyx lobe width > length; petals round to widely obovate; stamens 15. Fruit: obovoid, tip oblique-truncate, height <= hypanthium rim.

Adenostoma fasciculatum Hook. & Arn. var. fasciculatum
NATIVE
Habit: Plant < 4 m, not mounded. Stem: branches erect to ascending, twigs glabrous (hairy). Leaf: 5--13 mm, generally linear to oblanceolate, tips generally acute-acuminate. Inflorescence: open, 0.5--17.2 cm.
Ecology: Dry slopes, ridges, chaparral; Elevation: < 1830 m. Bioregional Distribution: NCoR, CaRF, SN, CW, SW; Distribution Outside California: southwestern Oregon, Baja California. Flowering Time: May--Jun
Jepson eFlora Author: William Jones
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

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Citation for this treatment: William Jones 2012, Adenostoma fasciculatum var. fasciculatum, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=53568, accessed on April 19, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 19, 2024.

Adenostoma fasciculatum  
var. fasciculatum
click for enlargement
©2009 Barry Breckling
Adenostoma fasciculatum  
var. fasciculatum
click for enlargement
©2019 Steve Matson
Adenostoma fasciculatum  
var. fasciculatum
click for enlargement
©2013 Neal Kramer
Adenostoma fasciculatum  
var. fasciculatum
click for enlargement
©2013 Neal Kramer
Adenostoma fasciculatum  
var. fasciculatum
click for enlargement
©2019 Steve Matson

More photos of Adenostoma fasciculatum var. fasciculatum
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Geographic subdivisions for Adenostoma fasciculatum var. fasciculatum:
NCoR, CaRF, SN, CW, SW
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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).





 

Data provided by the participants of the  Consortium of California Herbaria.
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All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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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 (fruiting time in some monocot genera).