Flora of North America species comparison

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Artemisia pedatifida

Artemisia suksdorfii

birdfoot sagebrush, Matted sagewort

coastal mugwort, coastal wormwood, Suksdorf sagewort, Suksdorf's mugwort, Suksdorf's sagewort, Suksdorf's wormwood
Habit Perennials or subshrubs, 5–15 cm (cespitose), aromatic. Perennials, 50–170(–200) cm, aromatic (rhizomes woody, coarse).
Stems

(5–20), gray-green, glabrescent.

usually 10+, erect, light brown, simple, usually glabrous.
Leaves

persistent, gray-green, mostly basal;

proximal blades reduced, mostly less than 1 cm, lobed or entire;

distal blades 1–2 × 0.5–0.8 cm, 1–2-ternately lobed, lobes 1–2 mm wide, apices acute, faces densely tomentose.

cauline (sessile), bicolor (white and dark green);

blades lanceolate, 5–10(–15) × 1–5 cm (bases strongly tapered, attenuate), coarsely and irregularly lobed, faces tomentose (abaxial) or glabrous (adaxial).
Involucres

globose, 3–4 × 3–4 mm.

narrowly turbinate or globose, 1.5–2.5 × 1–1.5 mm.
Florets

pistillate 4–7; functionally staminate 5–9;

corollas yellow, usually red-tinged, 2–3 mm, glabrous.

pistillate 2–5;

bisexual 2–7;

corollas yellow, 1.5–3 mm, glabrous.
Phyllaries

(margins scarious, obscured) white-tomentose.

(straw-colored to yellow-green, shiny) lanceolate, glabrous or sparsely hairy.
Heads

(mostly 6–15, 1 or 3–4 on lateral branches; mostly erect, sessile or pedunculate) in racemiform-paniculiform arrays, 5–8 × 0.5–0.8 cm.

(erect) in crowded (proximally leafy), paniculiform or racemiform arrays 17–30 × (2–)4–5 cm (lateral branches stiff, erect).
Cypselae

(brown) ellipsoid (angled), 0.8–1 mm, (sometimes with white ribs) glabrous.

ellipsoid, 0.8–1.5 mm, glabrous.
2n

= 18.

Artemisia pedatifida

Artemisia suksdorfii
Phenology Flowering early spring–mid summer. Flowering mid summer–fall.
Habitat High plains, grasslands Coastal habitats, often along roads or drainages
Elevation 1600–1800 m (5200–5900 ft) 0–200 m (0–700 ft)
Distribution
from FNA
CO; ID; MT; WY
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; OR; WA; BC
[WildflowerSearch map]
[BONAP county map]
Discussion

Artemisia suksdorfii is similar morphologically to A. douglasiana; it has more and smaller heads, and glabrous phyllaries. The two species hybridize where their ranges overlap.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 19, p. 509. FNA vol. 19, p. 533.
Parent taxa Asteraceae > tribe Anthemideae > Artemisia > subg. Drancunculus Asteraceae > tribe Anthemideae > Artemisia > subg. Artemisia
Sibling taxa
A. abrotanum, A. absinthium, A. alaskana, A. aleutica, A. annua, A. arbuscula, A. biennis, A. bigelovii, A. borealis, A. californica, A. campestris, A. cana, A. carruthii, A. douglasiana, A. dracunculus, A. filifolia, A. franserioides, A. frigida, A. furcata, A. globularia, A. glomerata, A. laciniata, A. longifolia, A. ludoviciana, A. michauxiana, A. nesiotica, A. norvegica, A. nova, A. packardiae, A. palmeri, A. papposa, A. pattersonii, A. pontica, A. porteri, A. pycnocephala, A. pygmaea, A. rigida, A. rothrockii, A. rupestris, A. scopulorum, A. senjavinensis, A. serrata, A. spiciformis, A. stelleriana, A. suksdorfii, A. tilesii, A. tridentata, A. tripartita, A. vulgaris
A. abrotanum, A. absinthium, A. alaskana, A. aleutica, A. annua, A. arbuscula, A. biennis, A. bigelovii, A. borealis, A. californica, A. campestris, A. cana, A. carruthii, A. douglasiana, A. dracunculus, A. filifolia, A. franserioides, A. frigida, A. furcata, A. globularia, A. glomerata, A. laciniata, A. longifolia, A. ludoviciana, A. michauxiana, A. nesiotica, A. norvegica, A. nova, A. packardiae, A. palmeri, A. papposa, A. pattersonii, A. pedatifida, A. pontica, A. porteri, A. pycnocephala, A. pygmaea, A. rigida, A. rothrockii, A. rupestris, A. scopulorum, A. senjavinensis, A. serrata, A. spiciformis, A. stelleriana, A. tilesii, A. tridentata, A. tripartita, A. vulgaris
Synonyms A. heterophylla, A. vulgaris var. littoralis
Name authority Nuttall: Trans. Amer. Philos. Soc., n. s. 7: 399. (1841) Piper: Bull. Torrey Bot. Club 28: 42. (1901)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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