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Aconogonon newberryi

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
Genus: AconogononView DescriptionDichotomous Key

Habit: [Annual] perennial herb. Stem: ascending to erect, glabrous or hairy, ribs 0. Leaf: cauline, alternate, petioled or not; ocrea funnel-shaped, papery, persistent or not, glabrous to scabrous; blade narrowly lanceolate to ovate, entire. Inflorescence: axillary, terminal, raceme- or panicle-like; peduncle present or 0; pedicel present; flowers 1--5. Flower: bisexual, base stalk-like or not; perianth not enlarging, rotate, cream or green- to yellow-white or pink, glabrous, parts 5, fused +- 1/4, petal-like, +- of 2 kinds, outer 2 < inner 3, +- obtuse; stamens 8, filaments free, not wider basally, fused to perianth tube or not, glabrous, anthers ovate to elliptic, yellow to pink or red-purple; styles 3, erect to spreading, fused basally or not, stigmas head-like. Fruit: included or exserted, unwinged, 3-angled, yellow- or dark-brown, faces subequal. Seed: embryo generally curved.
Species In Genus: +- 25 species: western North America, Europe, Asia. Etymology: (Greek: ak, point, gone, angle, probably from 3-angled fruit)

Aconogonon newberryi (Small) Soják
NATIVE
Stem: ascending to erect, 10--35(50) cm, glabrous (soft-hairy), branches from base. Leaf: ocrea 0.5--2 cm, +- brown, margins oblique, glabrous (soft-hairy); petiole 4--12(15) mm; blade 2.5--7(9) cm, 1.5--3(5) cm wide, lanceolate, oblong, or ovate, generally glaucous, +- glabrous to soft-hairy, dark-green becoming +- red, base acute, cordate to semi-sagittate, tip +- obtuse. Inflorescence: axillary; peduncle 0; pedicel 0.5--2 mm; flowers 3--6. Flower: perianth 2.5--4(4.5) mm, green-white to +- pink, lobes oblong-ovate to obovate. Fruit: exserted, 3.5--5(7.5) mm, 2--4.5 mm wide, ovate-oblong, yellow-brown, shiny.
Ecology: Volcanic slopes, especially pumice; Elevation: 1500--2400 m. Bioregional Distribution: KR, CaRH (esp Mount Shasta), n&c SNH, MP; Distribution Outside California: to Washington. Flowering Time: Jun--Aug Note: Further study needed to determine if this and Aconogonon davisiae belong to 1 sp.
Synonyms: Polygonum newberryi Small
eFlora Treatment Author: Mihai Costea
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Previous taxon: Aconogonon davisiae
Next taxon: Aconogonon phytolaccifolium

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Citation for this treatment: Mihai Costea 2016. Aconogonon newberryi, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=11872, accessed on December 10, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on December 10, 2016.


Aconogonon newberryi
click for enlargement
© 2014 Neal Kramer
Aconogonon newberryi
click for enlargement
© 2014 Neal Kramer
Aconogonon newberryi
click for enlargement
© 2014 Neal Kramer
Aconogonon newberryi
click for enlargement
© 2014 Neal Kramer
Aconogonon newberryi
click for enlargement
© 2014 Neal Kramer
Aconogonon newberryi
click for enlargement
© 2014 Neal Kramer

More photos of Aconogonon newberryi in CalPhotos


Geographic subdivisions for Aconogonon newberryi:
KR, CaRH (esp Mount Shasta), n&c SNH, MP;
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.