Chromolaena frustrata

(B. L. Robinson) R. M. King & H. Robinson

Phytologia 20: 201. 1970.

Common names: Cape Sable false thoroughwort
Endemic
Basionym: Eupatorium frustratum B. L. Robinson Proc. Amer. Acad. Arts 47: 193. 1911
Synonyms: Osmia frustrata (B. L. Robinson) Small
Treatment appears in FNA Volume 21. Treatment on page 545. Mentioned on page 544.

Perennials, 15–25 cm. Stems erect, puberulent to hispidulous. Petioles 5–12 mm. Leaf-blades (3-nerved) elliptic-lanceolate to ovatelanceolate or deltate-ovate, mostly 1.5–4 × 0.7–2.2 cm, margins shallowly dentate to serrate. Heads usually in clusters of 2–6. Involucres cylindric, 5.5–7.5 (–8) mm. Phyllaries in 4–6 series, apices of the inner appressed, rounded (not petaloid or expanded). Corollas blue to lavender.


Phenology: Flowering mostly Aug–Nov, sometimes year round.
Habitat: Coastal rock barrens, edges of rockland hammocks, undisturbed sites
Elevation: 0–10 m

Discussion

Chromolaena frustrata now grows in the Everglades National Park, Long Key State Recreation Area, Lignumvitae Key State Botanical Site, and two unprotected sites. The historical range includes more sites on the Keys.

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

... more about "Chromolaena frustrata"
not tailed +, truncate +, rounded +  and obtuse +
scarious +
usually ovate +  and lanceolate +
usually terete +  and clavate +
corymbiform +  and thyrsiform +
indeterminate +  and determinate +
Guy L. Nesom +
(B. L. Robinson) R. M. King & H. Robinson +
decurrent +
not enlarged +
Eupatorium frustratum +
dissected +, lobed +, toothed +  and entire +
mostly deltate;ovate +
papillate +  and rugose +
(4-)5-angled;10-ribbed +
linear;linear-clavate +
Cape Sable false thoroughwort +
blue +  and lavender +
scabrellous +
prismatic +
fertile +  and bisexual +
0–10 m +
puberulent +  and tomentose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Coastal rock barrens, edges of rockland hammocks, undisturbed sites +
in usually determinate , rarely indeterminate , arrays +  and singly +
indeterminate +
each +  and sessile +
0.75 cm7.5 mm <br />0.0075 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
sessile +  and petiolate +
lanceolate +  and lance-linear +
shallowly dentate +  and serrate +
lobed +  and dentate +
2-carpellate +
persistent +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Flowering mostly Aug–Nov, sometimes year round. +
18 +  and 65 +
epaleate +  and paleate +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
exalbuminous +
appendaged +  and truncate +
hirsutulous +
papillate +
Osmia frustrata +
Chromolaena frustrata +
Chromolaena +
species +
cylindric +
15 cm150 mm <br />0.15 m <br /> (25 cm250 mm <br />0.25 m <br />) +