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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 July 28, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on July 28, 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
© 2012 Keir Morse
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. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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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.