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.
 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 />) +