Artemisia pycnocephala

(Lessing) de Candolle in A. P. de Candolle and A. L. P. P. de Candolle

in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 6: 99. 1838.

Common names: Coastal sagewort
Endemic
Basionym: Oligosporus pycnocephalus Lessing Linnaea 6: 524. 1831
Synonyms: Artemisia campestris subsp. pycnocephala (Lessing) H. M. Hall & Clements
Treatment appears in FNA Volume 19. Treatment on page 509. Mentioned on page 505.

Perennials, 30–70 (–100) cm, faintly aromatic. Stems usually 10+ (rising beyond basal leaves, decumbent), whitish gray, (ca. 5 mm diam., densely leafy) densely hairy. Leaves persistent, gray-green; blades broadly lanceolate, faces woolly-hairy; proximalmost blades 3–8 × 2–6 cm, 2–3-pinnatifid, lobes linear (to 2 mm wide); cauline somewhat reduced, 2–3 × 0.8–1.2 cm; apices acute, faces hairy. Heads (sessile, clustered in glomerules) in (densely leafy) paniculiform to spiciform arrays 10–20 (–30) × 1–4 cm. Involucres globose, 3–4.5 × 3–4.5 mm. Phyllaries lanceolate, margins obscured by indument, hairs straight. Florets: pistillate 5–20; functionally staminate 12–25; corollas pale-yellow (broadly tubular), ca. 2 mm, glabrous. Cypselae ellipsoid (faintly nerved), 1–1.5 mm, glabrous.


Phenology: Flowering late spring–mid summer.
Habitat: Rocky or sandy soils of coastal beaches
Elevation: 0–200 m

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Artemisia pycnocephala"
not tailed +  and obtuse +
scarious +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
Leila M. Shultz +
(Lessing) de Candolle in A. P. de Candolle and A. L. P. P. de Candolle +
decurrent +
Oligosporus pycnocephalus +
compound +  and simple +
lanceolate +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Coastal sagewort +
zygomorphic +, actinomorphic +  and (3-)5-merous +
2 cm20 mm <br />0.02 m <br /> (?) +
winged +  and monomorphic +
ellipsoid +
fertile +  and bisexual +
fertile +  and bisexual +
0–200 m +
gland-dotted +
hairy +  and woolly-hairy +
staminate +  and pistillate +
winged +  and beaked +
dispersed +
Rocky or sandy soils of coastal beaches +
straight +
paniculiform +  and spiciform +
in subcapitate clusters +  and singly +
20 cm200 mm <br />0.2 m <br /> (30 cm300 mm <br />0.3 m <br />) +
indeterminate +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
heterogamous +  and homogamous +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
each +  and sessile +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
sessile +  and petiolate +
gray-green +
persistent +
basal +  and cauline +
deltate +
entire +  and dentate +
2-carpellate +
persistent +
Flowering late spring–mid summer. +
2 +  and 20 +
3 cm30 mm <br />0.03 m <br /> (8 cm80 mm <br />0.08 m <br />) +
2 cm20 mm <br />0.02 m <br /> (6 cm60 mm <br />0.06 m <br />) +
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
styliferous +, neuter +  and pistillate +
sterile +  and fertile +
conic;convex;conic;convex;flat +
2 +  and 5 +
exalbuminous +
whitish gray +
1 +  and 10 +
wand-like +
appendaged +  and truncate +
papillate +
Artemisia campestris subsp. pycnocephala +
Artemisia pycnocephala +
Artemisia subg. Drancunculus +
species +
funnel +  and subglobose +
cylindric +
taprooted +  and fibrous-rooted +
70 cm700 mm <br />0.7 m <br /> (100 cm1,000 mm <br />1 m <br />) +
30 cm300 mm <br />0.3 m <br /> (70 cm700 mm <br />0.7 m <br />) +
taprooted +  and fibrous-rooted +