Pentzia

Thunberg

Prodr. Pl. Cap., 145. 1800.

Etymology: For Hendrik Christian Pentz, 1738–1803, Swedish plant collector
Treatment appears in FNA Volume 19. Treatment on page 543. Mentioned on page 53, 68, 487.
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 TaxonIllustrator 
FNA19 P63 Oncosiphon piluliferum.jpegOncosiphon piluliferum
Matricaria occidentalis
Pentzia incana
John Myers
Yevonn Wilson-Ramsey
John Myers

Shrubs [subshrubs], [5–] 15–35 [–50] cm (usually aromatic). Stems 1–10+, usually much branched, ± tomentose (hairs medifixed) [glabrate or glabrous]. Leaves cauline (often fascicled, ± ericoid); alternate [opposite]; petiolate or sessile; blades linear to obovate or cuneate, often 1 [–2] -pinnately lobed, ultimate margins entire or toothed, faces ± tomentose [glabrate or glabrous]. Heads discoid, borne singly or in loose, corymbiform arrays (pedunculate). Involucres spheric to hemispheric or broader, 3–6 [–12+] mm diam. Phyllaries persistent or tardily falling, 22–40 [–60+] in 3–4+ series, distinct, deltate-ovate to elliptic or obovate (sometimes each with central resin canal and/or keel), unequal, margins and apices (often hyaline, sometimes brownish) ± scarious (tips of inner ± dilated). Receptacles conic [convex to hemispheric], epaleate. Ray-florets 0. Disc-florets 40–100 [–200+], bisexual, fertile; corollas yellow, tubes ± cylindric (usually dilated, with relatively thick vascular strands), throats abruptly dilated, lobes 5, triangular. Cypselae narrowly obovoid to oblong or elliptic, ± terete or flattened, ribs 5, faces gland-dotted between ribs (pericarps with myxogenic cells abaxially and along ribs); pappi of 1 (often cupped or earlike) or 3–5 (erose to lacerate) scales (usually more developed adaxially) [asymmetrically coroniform or 0]. x = 9.

Distribution

Introduced; Africa (mostly South Africa), Africa (also Namibia and Mediterranean Africa and adjacent areas)

Discussion

Species ± 23 (1 in the flora).

Selected References

None.

Lower Taxa

"broader" is not a number.

... more about "Pentzia"
not tailed +  and obtuse +
scarious +
indeterminate +  and determinate +
David J. Keil +
Thunberg +
decurrent +
compound +  and simple +
lobed;linear;obovate or cuneate +
zygomorphic +, actinomorphic +  and (3-)5-merous +
winged +  and monomorphic +
narrowly obovoid +  and oblong or elliptic more or less terete or flattened +
fertile +  and bisexual +
fertile +  and bisexual +
Africa (mostly South Africa) +  and Africa (also Namibia and Mediterranean Africa and adjacent areas) +
For Hendrik Christian Pentz, 1738–1803, Swedish plant collector +
gland-dotted +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
in loose , corymbiform arrays +  and singly +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
spheric;hemispheric +
sessile +  and petiolate +
triangular +
entire +  and dentate +
2-carpellate +
persistent +
22 +  and 40 +
Prodr. Pl. Cap., +
styliferous +, neuter +  and pistillate +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
3 +  and 5 +
exalbuminous +
prostrate +  and ascending +
1 +  and 10 +
appendaged +  and truncate +
papillate +
Compositae +
Pentzia +
Asteraceae tribe Anthemideae +
cylindric +
toothed +  and entire +
perennial +, biennial +  and annual +
35 cm350 mm <br />0.35 m <br /> (50 cm500 mm <br />0.5 m <br />) +