Minuartia drummondii |
Minuartia godfreyi |
|
---|---|---|
Drummond's stitchwort |
Godfrey's stitchwort |
|
Habit | Plants annual. | Plants short-lived perennial or winter annual. |
Taproots | filiform. |
filiform. |
Stems | erect to ascending, green, 5–20 cm, stipitate-glandular, often densely so, internodes of all stems 1–3 times as long as leaves. |
erect or ascending, arising from mats of slender, prostrate or ascending, wintering stems, green, 10–40 cm, occasionally stipitate-glandular at nodes, internodes of all stems 1–3 times as long as leaves. |
Leaves | overlapping proximally, perfoliate proximally, with ± loose, scarious to herbaceous sheath 0.5–1 mm; blade green, flat, 1-veined, oblanceolate to cuneate (proximal) to oblong-lanceolate to ovate (remaining cauline), 5–30(–35) × 2–4 mm, flexuous, margins not thickened, ± scarious, smooth, apex green to purple, obtuse to abruptly pointed, dull, glabrous; axillary leaves absent. |
sometimes overlapping proximally, connate proximally, with ± loose, herbaceous sheath 0.2–0.4 mm; blade widely spreading to erect, green, 1-veined abaxially, flat, narrowly elliptic (proximal petiolate blades) to linear (remaining cauline blades), 8–30 × 0.5–3 mm, flexuous, margins not thickened, scarious, occasionally stipitate-glandular, apex green, acute to acuminate, shiny, glabrous; axillary leaves absent. |
Inflorescences | 7–12-flowered, open cymes, or rarely solitary, terminal; bracts ± lanceolate, herbaceous, sometimes scarious-margined proximally. |
3–5(–7)-flowered, open, leafy cymes; bracts linear to lanceolate, herbaceous. |
Pedicels | reflexed in fruit, 0.5–2.5 cm, stipitate-glandular. |
1–5 cm, sparsely glandular. |
Flowers | hypanthium disc-shaped; sepals obscurely veined, ovate to broadly elliptic (herbaceous portion ovate to broadly elliptic), 3–6 mm, to 7 mm in fruit, apex green or purple, acute to acuminate, not hooded, stipitate-glandular; petals obovate to oblanceolate, 2–2.5 times as long as sepals, apex rounded, broadly notched. |
hypanthium disc-shaped; sepals 3-veined, lanceolate (herbaceous portion linear-lanceolate to lanceolate), 3.5–5 mm, not enlarging in fruit, apex often purple, acute, not hooded, stipitate-glandular; petals oblong-spatulate, 2.5–3 times as long as sepals, apex rounded, shallowly notched. |
Capsules | sessile, broadly ellipsoid, 6–7.5 mm, equaling or longer than sepals. |
on stipe ca. 0.2 mm, ovoid, 4 mm, shorter than sepals. |
Seeds | dark brown to blackish, orbiculate with radicle prolonged into beak, only slightly compressed, 0.7–0.8 mm, echinate with rounded tubercles. |
black, suborbiculate to reniform, radicle obscure, laterally compressed, 0.6–0.8 mm, muriculate-papillate. |
Minuartia drummondii |
Minuartia godfreyi |
|
Phenology | Flowering late winter–early summer. | Flowering spring. |
Habitat | Open grassy woodlands, sandy soils | Open mesic meadows, seeps, and stream banks |
Elevation | 0-500 m (0-1600 ft) | 0-400 m (0-1300 ft) |
Distribution |
AR; LA; OK; TX |
AL; AR; FL; GA; NC; SC; TN; VA
|
Discussion | Minuartia drummondii is easily recognized by the proportionally large corollas (petals to three times as long as sepals) and pedicels reflexing in fruit. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Minuartia godfreyi is known from few, very widely scattered populations; it may be most closely related to M. patula and M. muscorum, sharing prominently ribbed sepals with both taxa and black, muriculate-papillate seeds with the latter (R. Kral 1983). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 5, p. 124. | FNA vol. 5, p. 126. |
Parent taxa | Caryophyllaceae > subfam. Alsinoideae > Minuartia | Caryophyllaceae > subfam. Alsinoideae > Minuartia |
Sibling taxa | ||
Synonyms | Arenaria drummondii | Arenaria godfreyi |
Name authority | (Shinners) McNeill: Notes Roy. Bot. Gard. Edinburgh 24: 147. (1962) | (Shinners) McNeill: Rhodora 82: 498. (1980) |
Web links |