Flora of North America species comparison

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Artemisia globularia

purple wormwood
Habit Perennials, (3–)5–16(–30) cm (cespitose), faintly aromatic (not rhizomatous, taproots stout, caudices simple or branched, proximal branches clothed with persistent leaf bases).
Stems

1–5, erect, whitish gray, densely tomentose.
Leaves

mostly basal (cauline 1–4), greenish to whitish green;

blades (basal) 1–4.5 × 0.6–1.5 cm, 1–2-ternately to palmately lobed (flowering-stem blades 3-lobed), faces sparsely hairy.
Involucres

campanulate or hemispheric, 3.5–6 × 6–11 mm.
Florets

pistillate 9–10;

bisexual 20–30;

corollas yellow or reddish black, 2–3 mm, sometimes glandular.
Phyllaries

lanceolate (margins brown), pilose.
Heads

(2–20, peduncles 0 or to 25 mm) in subcapitate to capitate arrays 2–3 × 2–3 cm.
Cypselae

oblong, 1.5–2.5 mm, (apices flattened) glabrous.

Artemisia globularia
Distribution
from FNA
AK; YT; Asia
[BONAP county map]
Discussion

Subspecies 2 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Corollas reddish black; cypselae ca. 2.5 mm, margins with relatively narrow ribs
subsp. globularia
1. Corollas yellow; cypselae 1.5–2 mm, margins with relatively broad ribs
subsp. lutea
Source FNA vol. 19, p. 525.
Parent taxa 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. 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. suksdorfii, A. tilesii, A. tridentata, A. tripartita, A. vulgaris
Subordinate taxa
A. globularia subsp. globularia, A. globularia subsp. lutea
Synonyms Ajania globularia, A. norvegica subsp. globularia
Name authority Chamisso ex Besser: Nouv. Mém. Soc. Imp. Naturalistes Moscou 3: 64. (1833)
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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