Borrichia arborescens

(Linnaeus) de Candolle

in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 489. 1836.

Basionym: Buphthalmum arborescens Linnaeus Syst. Nat. ed. 10, 2: 1227. 1759
Treatment appears in FNA Volume 21. Treatment on page 130.

Stems decumbent to ascending. Leaves (at least mid cauline) oblanceolate to linear, 5–10(–15) × 0.4–2 cm, margins entire or dentate to serrate (teeth remote mostly toward apices), faces glabrous or sericeous (sometimes on same leaf). Heads borne singly or (3–6) in cymiform arrays (peduncles 0.5–5 cm). Involucres ovoid to hemispheric, (8–)10–14(–17) mm. Phyllaries 10–16 in 3–4 series (chartaceous in fruiting heads, outer ovate-elliptic, apices obtuse or acute, faces glabrate or sericeous; inner oblanceolate, apices rounded, obtuse, or acute, faces glabrous). Paleae: apices obtuse to acute. Ray florets 7–15; laminae 5–8 × 2.5–4 mm. Disc florets 20–50; corollas 5–6 mm, lobes 1–1.5 mm. Cypselae 3.5–5 mm, 4-angled. 2n = 28.


Phenology: Flowering late spring–summer.
Habitat: Rocky coasts, sandy marshes, beaches
Elevation: 0–10 m

Distribution

V21-317-distribution-map.gif

Fla., West Indies, Bermuda.

Discussion

Borrichia arborescens grows in the Florida Keys, Bermuda, and the West Indies, including Jamaica and Guadeloupe. Plants of B. arborescens are usually glabrous; both glabrous and hairy plants occur in the northern West Indies. Common names that include “tree” are misleading because the plants are shrubs.

Selected References

None.

Lower Taxa

None.
... more about "Borrichia arborescens"
John C. Semple +
(Linnaeus) de Candolle +
Buphthalmum arborescens +
Fla. +, West Indies +  and Bermuda. +
0–10 m +
Rocky coasts, sandy marshes, beaches +
Flowering late spring–summer. +
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
Undefined (tribe Undefined) subtribe Enceliinae +, Undefined (tribe Undefined) subtribe Engelmanniinae +, Undefined (tribe Undefined) subtribe Spilanthinae +, Undefined (tribe Undefined) subtribe Verbesininae +  and Undefined (tribe Undefined) subtribe Zinniinae +
Borrichia arborescens +
Borrichia +
species +