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Crataegus castlegarensis

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: CrataegusView DescriptionDichotomous Key

Common Name: HAWTHORN
Habit: Shrub, tree, thorny. Leaf: simple, alternate, petioled, +- ovate, generally +- lobed above middle, toothed, deciduous. Inflorescence: panicle on short-shoot tips, domed; pedicel bractlets several to many, +- 5 mm, narrow, margins glandular. Flower: hypanthium urn-shaped, bractlets 0; sepals small, margins entire to finely toothed, generally glandular; petals white; stamens +- 10 or 20; ovary inferior, styles 1--5, free. Fruit: pome, drupe-like, red to black, generally lighter in color before fully mature, core of 1--5 laterally pitted stones [or not]; sepals reflexed [or not].
Species In Genus: +- 200 species: northern temperate. Etymology: (Greek: hard, for wood) Note: Several species cultivated, escaped.
Unabridged Note: Various species cultivated in arboreta, escaped elsewhere; several species in retail commerce, e.g., Crataegus ×media Sarg. cvs (generally misnamed as Crataegus laevigata (Poir.) DC. or Crataegus oxyacantha L.), Crataegus monogyna cvs, Crataegus phaenopyrum (L. f.) Medik.
eFlora Treatment Author: James B. Phipps

Crataegus castlegarensis J.B. Phipps & O'Kennon
NATIVE
Stem: thorns 18--23 mm, in 2s to 4s or not. Leaf: of short-shoots 3.5--6 cm, +- elliptic-diamond-shaped to narrow-obovate, base wedge-shaped, shallowly lobed, tip acute. Inflorescence: hairy. Flower: 12--15 mm diam; sepals distally glandular-serrate; stamens +- 10, anthers pink; styles 3--4. Fruit: 10--12 mm diam, +- spheric, deep purple to black, stones 3--4. Chromosomes: 2n=68.
Ecology: Streamsides in meadows, scrub, forest; Elevation: 900--1300 m. Bioregional Distribution: CaR, MP; Distribution Outside California: to British Columbia, Saskatchewan, Montana. Flowering Time: May--Aug Note: Described in 2002, found in California in 2004.
eFlora Treatment Author: James B. Phipps
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Listed on CNPS Rare Plant Inventory

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Citation for this treatment: James B. Phipps 2016. Crataegus castlegarensis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=85314, accessed on February 11, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 11, 2016.


Geographic subdivisions for Crataegus castlegarensis:
CaR, 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.