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Eriogonum deflexum var. deflexum
FLAT-TOPPED SKELETON WEED

Higher Taxonomy
Family: PolygonaceaeView DescriptionDichotomous Key

Common Name: BUCKWHEAT FAMILY
Habit: Annual to shrub [tree]. Stem: nodes swollen or not. Leaf: simple, basal or cauline, generally alternate; ocreae present or 0, generally scarious, persistent or not. Inflorescence: flower clusters in axillary to terminal cyme-, panicle-, raceme-, spike-, umbel- or head-like arrangements, entire inflorescence or main inflorescence branches generally subtended by bracts ("inflorescence bracts"); peduncles present or 0; flower clusters in Eriogoneae-Eriogonoideae subtended by involucre of >= 1 free or +- fused, sometimes awn-tipped bracts ("involucre bracts") or, in Polygonoideae and rarely in Eriogonoideae, not (if bracts completely fused, involucre "tubular"); pedicels in Eriogoneae each often subtended by 2 free, transparent, linear bractlets or in Polygonoideae all subtended by 2+ fused, membranous, wide bractlets. Flower: generally bisexual, small, 1--200 per node; perianth parts 2--6, generally in 2 whorls, free or basally fused, generally petal-like, often +- concave adaxially, often darker at midvein, often turning +- red or +- brown in age; stamens [1]3 or 6--9 in 2 whorls; ovary superior, 1-chambered, ovule 1, styles 1--3. Fruit: achenes, included in or exserted from perianth, generally 3-angled, ovoid or elliptic, generally glabrous.
Genera In Family: 48 genera, +- 1200 species: worldwide, especially northern temperate; some cultivated for food (Coccoloba, sea-grape; Fagopyrum, Rheum, Rumex) or ornamental (Antigonon, lovechain; Coccoloba; Muehlenbeckia; Persicaria; Polygonum), a few timbered (Coccoloba; Triplaris). Several (Emex; Fallopia; Persicaria; Polygonum; Rumex) are weeds. Note: Treatment of genera in Eriogonoideae based on monographic work of James L. Reveal. Involucre number throughout is number (1--many) per ultimate grouping, at tips of ultimate branches; flower number is per flower cluster or involucre, unless otherwise stated. Fagopyrum esculentum Moench not naturalized, considered an historical waif (or garden weed +- presently), therefore not treated.
eFlora Treatment Author: Mihai Costea, except as noted
Scientific Editor: Thomas J. Rosatti, Bruce G. Baldwin.
Genus: EriogonumView DescriptionDichotomous Key

Common Name: WILD BUCKWHEAT
Habit: Annual to shrub, matted or not. Stem: prostrate to erect, occasionally 0, glabrous or hairy, occasionally glandular. Leaf: basal, sheathing (on stem above basal, beneath other, +- non-sheathing cauline), or cauline, alternate, opposite, or whorled; blades linear to +- round, generally longer than wide, margins flat, wavy, or rolled under; ocreae 0. Inflorescence: variable, glabrous or hairy, occasionally glandular; peduncles 0 or erect to reflexed (pointed down); involucres 1 or in clusters, tubular, glabrous or hairy, teeth generally 4--10, awns 0. Flower: (2)6--100(200), with a stalk-like base ("flower stipe" or "stipe") or not; perianth generally white to red or yellow, glabrous or hairy, occasionally glandular, lobes 6, generally entire; stamens 9. Fruit: generally brown or black, generally obconic, glabrous or hairy; embryo curved or straight.
Species In Genus: +- 250 species: temperate North America. Etymology: (Greek: woolly knees, for hairy nodes of 1st sp. named) Note: One of largest genera in California; stem in descriptions refers to the main stem(s), not branches of inflorescence. A perennial herb allied to Eriogonum austrinum (S. Stokes) Reveal and Eriogonum moranii Reveal of east-central Baja California, with spreading (rather than reflexed or erect) involucres on peduncles < 2 mm, occurring in DMtns (Bristol, Granite mountains), has been known for nearly 25 years yet remains undescribed. Eriogonum puberulum moved to Johanneshowellia.
eFlora Treatment Author: James L. Reveal & Thomas J. Rosatti
Species: Eriogonum deflexumView Description 

Common Name: SKELETON WEED
Habit: Annual (0.5)1--10(20) dm. Stem: 0.3--3(4) dm, glabrous, occasionally inflated. Leaf: basal; blades 1--2.5(4) cm, 2--4(5) cm wide, generally +- round, tomentose abaxially, sparsely tomentose or +- glabrous adaxially. Inflorescence: 10--90(180) cm, 5--50 cm wide; branches occasionally inflated, glabrous; peduncles 0 or reflexed (or some +- erect), <= 1.5 cm, straight, slender to stout, glabrous; involucres 1.5--2.5(3) mm, glabrous, teeth 5. Flower: 1--2.5 mm, glabrous; perianth white to +- pink to +- red; outer lobes oblong or cordate to ovate, inner lanceolate to narrowly ovate. Fruit: (1.5)2--3 mm, glabrous.


Eriogonum deflexum NULL var. deflexum
NATIVE
Habit: Plant (0.5)1--5(20) dm. Stem: not inflated. Inflorescence: flat-topped, spreading, hemispheric, rarely narrowly erect with whip-like branches; branches not inflated; peduncles 0 or reflexed (or some +- erect), generally <= 0.5 cm; involucres 1.5--2.5 mm. Flower: 1--2 mm; outer lobes cordate to ovate. Chromosomes: n=20.
Ecology: Common. Sand; Elevation: -50--1900 m. Bioregional Distribution: D; Distribution Outside California: to western and southern Utah, southwestern New Mexico, northwestern Mexico. Flowering Time: All year
Synonyms: Eriogonum deflexum var. rectum Reveal; Eriogonum deflexum subsp. insigne (S. Watson) S. Stokes; Eriogonum deflexum var. insigne (S. Watson) M.E. Jones; Eriogonum deflexum f. stenopetala H. Gross; Eriogonum deflexum var. turbinatum (Small) Reveal; Eriogonum insigne S. Watson; Eriogonum turbinatum Small
eFlora Treatment Author: James L. Reveal & Thomas J. Rosatti
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Citation for this treatment: James L. Reveal & Thomas J. Rosatti 2016. Eriogonum deflexum var. deflexum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=58520, accessed on February 06, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 06, 2016.


Eriogonum deflexum var. deflexum
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© 2008 Steve Matson
Eriogonum deflexum var. deflexum
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© 2012 Gary A. Monroe
Eriogonum deflexum var. deflexum
click for enlargement
© 2012 Gary A. Monroe
Eriogonum deflexum var. deflexum
click for enlargement
© 2008 Steve Matson
Eriogonum deflexum var. deflexum
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© 2008 Thomas Stoughton
Eriogonum deflexum var. deflexum
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© 2010 Keir Morse

More photos of Eriogonum deflexum var. deflexum in CalPhotos


Geographic subdivisions for Eriogonum deflexum var. deflexum:
D;
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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Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.