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Artemisia bigelovii
Artemisia bigelovii
A. Gray
Family:
Asteraceae
Bigelow sage,
more...
Bigelow sagebrush, Bigelow's sagebrush
Max Licher
Flora of North America
General Description
Resources
Leila M. Shultz in Flora of North America (vol. 19, 20 and 21)
Shrubs,
20-40(-60) cm (branched from bases, rounded), mildly aromatic; not root-sprouting.
Stems
silvery, canescent (bark gray-brown).
Leaves
persistent, light gray-green; blades narrowly cuneate, 0.5-3 × 0.2-0.5 cm, entire or 3(-5)-lobed (lobes 1.5-2 mm, less than
1
/3 blade lengths, acute), faces silvery canescent.
Heads
(usually nodding) in arrays 6-25 × 1-4 cm (branches erect, somewhat curved).
Involucres
globose, 2-3 × 1.5-2.5 mm.
Phyllaries
(8-15) ovate, canescent or tomentose.
Florets:
pistillate 0-2 (raylike, laminae to 1 mm); bisexual 1-3; corollas 1-1.5 mm (style branches of ray florets elongate, exsert, epapillate, tips acute; of disc florets, short, truncate, papillate).
Cypselae
(ellipsoid, 5-ribbed) 0.8-1 mm, glabrous.
2
n
=
18, 36, 72. Flowering early summer-late fall. Deserts, sandy or alkaline soils, rock outcrops; 1000-2500 m; Ariz., Calif., Colo., Nev., N.Mex., Tex., Utah.
Plant
: Shrub 4-6 dm, rounded, branched from base; stems many, slender, curved, silvery-canescent
Leaves
: 0.5-3 cm, entire to sharply 3-toothed, densely hairy
INFLORESCENCE
: 6-23 cm, 1-4 cm wide; heads 2-2.5 mm diam, nodding; phyllaries 12-15, ovate, obtuse, densely hairy, margins narrowly scarious
Flowers
: Pistillate flowers 0-2; ligules < 1 mm; corollas generally < 2 mm; Disk flowers 2-3; corollas < 1.5 mm, pale yellow; anther tips acute to awl-shaped; style branches flat, fringed or blunt (sometimes simple, tack-shaped in staminate flowers)
Fruit
: achenes, elliptic in outline, 5-ribbed, glabrous
Misc
: Sandy, often limestone soils; 1300-1900 m.; Aug-Sep
Open Interactive Map
Max Licher
Max Licher
Max Licher
Max Licher
Kirstin Olmon
Kirstin Olmon
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