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AGAVACEAE CENTURY PLANT FAMILY

Dale W. McNeal, except as noted

Perennial herb, shrub, tree, fibrous succulent or not, from bulbs or rhizomes. Stem: above ground or not, branched or not. Leaf: simple, deciduous or not, basal or in terminal rosettes, generally sessile, linear, lanceolate, oblanceolate or ovate, fibrous or not, thin and flexible or thick and rigid or succulent; margin entire, fine-serrate, dentate, or with filaments, tips rigid or flexible, with a spine or not. Flower: bisexual; perianth parts 6, in 2 petal-like whorls, free or ± fused; stamens 6, ± fused to perianth, filaments often wide, succulent; ovary superior or inferior, chambers 3, style 1 (thick, poorly defined), stigma head-like or 3-lobed. Fruit: capsule, indehiscent, loculicidal, or septicidal. Seed: few to many, ± flat or ovoid, generally black.
23 genera, 637 species: worldwide. —Scientific Editors: Dale W. McNeal, Thomas J. Rosatti.

Key to Agavaceae

HASTINGSIA
Perennial herb; bulb ovoid to ± elongate, outer coat black. Stem: 25–90 cm, slender. Leaf: basal, grass-like, keeled, ± glaucous. Inflorescence: ± scapose raceme or panicle, bracted; flowers 20–70+. Flower: perianth parts 6, in 2 petal-like whorls, fused at base; stamens 6, fused to perianth, outer 3 > perianth, opening before inner, all equal after flowers open; ovary superior, chambers 3, style 1, stigma 3-lobed. Fruit: short-stalked, loculicidal. Seed: ovoid, flat, black.
4 species: California, Oregon. (S.C. Hastings, first Chief Justice of California Supreme Court, 1814–1893) [Becking 2002 FNANM 26:309–312]
Unabridged etymology: (Hon. Serranus Clinton Hastings, 1814–1893, first Chief Justice of the Supreme Court of California)

Key to Hastingsia

H. alba (Durand) S. Watson
NATIVE
Bulb 26–56 mm, 17–31 mm wide. Inflorescence: dense; branches generally 2–3. Flower: 6–8 mm; perianth parts elongating as anthers mature, equal, white to ± yellow, outer ± 1 mm wide, linear, blunt, inner ± 2 mm wide, ovate, acute. Fruit: 6–9 mm, oblong.
n=26. Wet meadows, bogs, rocky seeps; 500–2300 m. Northwestern California, Cascade Range, n High Sierra Nevada; southwestern Oregon. Jun–Jul [Online Interchange]

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Oct 24 2014
Citation for this treatment: [Author of taxon treatment] 2013. Hastingsia, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=27714, accessed on Oct 24 2014

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click for enlargement Hastingsia alba
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1995 Saint Mary's College of California

Geographic subdivisions indicated for the distribution of Hastingsia alba 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.