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Geum aleppicum
ALEPPO OR YELLOW AVENS

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: GeumView DescriptionDichotomous Key

Habit: Perennial herb from thick caudex or elongate rhizome. Stem: ascending to erect, generally hairy. Leaf: generally basal, generally odd-1-pinnately compound, upper cauline simple or not; leaflets lobed, alternately large, small, teeth uneven. Inflorescence: generally cyme, open; pedicel bractlets 0. Flower: hypanthium shallow, bractlets generally 5; stamens > 20; pistils many, ovary superior, continuous to style. Fruit: achene, ovoid to fusiform, +- flat; style elongated, persistent.
Species In Genus: 40--50 species: generally northern temperate, arctic. Etymology: (Latin: ancient name)
eFlora Treatment Author: Joseph R. Rohrer

Geum aleppicum Jacq.
NATIVE
Habit: Plant tufted, drying black-green. Stem: 30--120 cm. Leaf: 10--40 cm; main leaflets 1--4 per side, largest nearly = lobes of terminal; terminal leaflet 5--10 cm, generally 3-lobed nearly to base, sharp-toothed. Inflorescence: 3--7(10)-flowered; pedicels hairy, nonglandular. Flower: rotate, generally erect; hypanthium bractlets 2--4 mm, lance-linear; sepals reflexed, 4--8 mm; petals 4--9 mm, ovate-round, yellow, deciduous. Fruit: body 4--5 mm; style 3--6 mm, hooked below deciduous tip, with few bristles at base, nonglandular. Chromosomes: 2n=42.
Ecology: Meadows; Elevation: 1000--1600 m. Bioregional Distribution: n CaRH (Mount Shasta), MP; Distribution Outside California: to northern and eastern North America, Mexico, Eurasia. Flowering Time: Jun--Aug
Synonyms: Geum strictum Aiton
eFlora Treatment Author: Joseph R. Rohrer
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory

Previous taxon: Geum
Next taxon: Geum macrophyllum

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Citation for this treatment: Joseph R. Rohrer 2016. Geum aleppicum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=26825, accessed on February 13, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 13, 2016.


Geum aleppicum
click for enlargement
© 2015 Barry Breckling
Geum aleppicum
click for enlargement
© 2015 Barry Breckling

More photos of Geum aleppicum in CalPhotos


Geographic subdivisions for Geum aleppicum:
n CaRH (Mount Shasta), MP;
Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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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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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.
Blue line denotes eFlora flowering time.