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pineland catchfly, slender clammyweed, slenderleaf clammyweed

Habit Annuals, 20–45(–90) cm.
Stems

usually unbranched, sometimes branched (reddish purple);

hairs stalked, glandular throughout.

Leaves

petiole green to purple, subterete, (0.2–)1–3 cm;

leaflet blade (conduplicate), linear, 1–5 × 0.05–0.2 cm, margins entire, apex obtuse, mucronulate, surfaces sparsely glandular abaxially, glabrous or sparsely glandular adaxially, (fleshy).

Racemes

1–3 cm (6–8 cm in fruit);

bracts trifoliate, elliptic, 5–15 mm.

Pedicels

5–15 mm.

Flowers

sepals (reflexed), pale yellow, lanceolate to deltate, 1.6–2.6 × 0.7–1.2 mm, clawed, margins entire, apex acute to obtuse, glandular;

petals white, oblong-ovate, abaxial pair 1.5–3 × 1–2 mm (6 or 7-lobed), apex emarginate to lacerate, adaxial pair 3.5–5 × 2–3 mm (barely clawed, 4 or 5-lobed), apex emarginate to lacerate;

nectary glands yellow (drying purple), 0.5 mm;

stamens 8–13, slightly exserted, yellow, 3–6 mm;

anthers yellow with maroon tip, 1–2 mm;

gynophore 1.7–4 mm in fruit;

ovary 2.5–5(–7) mm;

style persistent in fruit, 2.5–4.5 mm;

stigma red.

Capsules

40–60 × 2–4 mm, reticulate, glandular or glabrous.

Seeds

18–36, reddish brown, spheroidal, 0.7–0.9 mm, pebbled (without transverse ridges).

2n

= 20.

Polanisia tenuifolia

Phenology Flowering spring–late summer.
Habitat Scrub, dry pinelands, oak-pine woods, sandhills, lakeshores
Elevation 0-100 m (0-300 ft)
Distribution
from FNA
AL; FL; GA; MS
[WildflowerSearch map]
[BONAP county map]
Discussion

Polanisia tenuifolia is restricted to the Coastal Plain Province, from Florida to Mississippi, and Georgia. The common name catchfly refers to insects sticking to the viscid glandular secretions of the herbage. The same name is given also to some species of Silene (Caryophyllaceae) for the same reason.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 7, p. 204.
Parent taxa Cleomaceae > Polanisia
Sibling taxa
P. dodecandra, P. erosa, P. jamesii, P. uniglandulosa
Synonyms Aldenella tenuifolia, Cleome aldenella, Jacksonia tenuifolia
Name authority Torrey & A. Gray: Fl. N. Amer. 1: 123. (1838)
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