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Boerhavia coulteri var. palmeri

Higher Taxonomy
Family: NyctaginaceaeView DescriptionDichotomous Key

Common Name: FOUR O'CLOCK FAMILY
Habit: Annual, perennial herb, subshrub, [shrub, tree], glabrous or hairy. Stem: often forked. Leaf: opposite, sessile or petioled, pairs generally unequal; blade generally entire. Inflorescence: generally forked; spike, head-like cluster, or umbel, flowers rarely 1, bracts forming a calyx-like involucre or not. Flower: bisexual, generally +- radial (bilateral), sometimes cleistogamous in some genera; perianth of 1 whorl, generally petal-like, bell- to trumpet-shaped, base hardened, tightly surrounding ovary in fruit, lobes 3--5, generally notched to +- lobed; stamens 1--many; ovary superior (appearing inferior due to hardened perianth base), style 1. Fruit: achene in hardened perianth base; round to +- flat; smooth, angled, ribbed, or winged; glabrous, hairy, or glandular.
Genera In Family: 30 genera, 350 species: warm regions, especially America; some ornamental (Bougainvillea; Mirabilis, four o'clock).
eFlora Treatment Author: Andy Murdock, except as noted
Scientific Editor: Thomas J. Rosatti.
Genus: BoerhaviaView DescriptionDichotomous Key

Common Name: SPIDERLING
Habit: Annual, perennial herb. Stem: prostrate to erect; internode often with sticky region. Leaf: petioled; blade 1--6 cm, paler beneath, often brown-dotted. Inflorescence: panicle-like, branches ending in umbel, spike-like raceme, or paired or solitary flowers; bracts 1--3, free, not forming involucre. Flower: closing by evening; perianth bell-shaped, tube < 5 mm, limb < 3 mm; stamens 1--5; stigma +- spheric, generally exserted. Fruit: < 4 mm, club-shaped; ribs 4--5; wings 0.
Species In Genus: +- 40 species: warm regions worldwide. Etymology: (H. Boerhaave, Dutch botanist, 1668--1738)

Boerhavia coulteri (Hook. f.) S. Watson var. palmeri (S. Watson) Spellenb.
NATIVE
Habit: Annual. Stem: decumbent to erect, < 8 dm, puberulent. Leaf: blade lanceolate to ovate-triangular, +- acute. Inflorescence: spike-like raceme; bracts << fruit, deciduous. Flower: < 1.5 mm; perianth pale pink to white. Fruit: 2.5 mm, glabrous; narrow, wrinkled between generally 5 wide ribs; tip rounded to +- truncate.
Ecology: Gravelly hillsides, washes; Elevation: < 1450 m. Bioregional Distribution: ChI (possibly introduced), se DMoj (desert mtns and lower montane slopes), DSon; Distribution Outside California: to Arizona, Mexico. Flowering Time: Sep--Nov Note: Boerhavia coulteri var. coulteri expected as agricultural weed in southern California.
eFlora Treatment Author: Andy Murdock
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Previous taxon: Boerhavia coccinea
Next taxon: Boerhavia diffusa

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botanical illustration including Boerhavia coulteri var. palmeri

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Citation for this treatment: Andy Murdock 2016. Boerhavia coulteri var. palmeri, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=81377, 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.


Boerhavia coulteri var. palmeri
click for enlargement
© 2012 Keir Morse
Boerhavia coulteri var. palmeri
click for enlargement
© 2012 Keir Morse
Boerhavia coulteri var. palmeri
click for enlargement
© 2013 Neal Kramer
Boerhavia coulteri var. palmeri
click for enlargement
© 2013 Neal Kramer
Boerhavia coulteri var. palmeri
click for enlargement
© 2012 Keir Morse
Boerhavia coulteri var. palmeri
click for enlargement
© 2012 Keir Morse

More photos of Boerhavia coulteri var. palmeri in CalPhotos


Geographic subdivisions for Boerhavia coulteri var. palmeri:
ChI (possibly introduced), se DMoj (desert mtns and lower montane slopes), DSon;
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.