Gratiola ebracteata |
Gratiola viscidula |
|
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bractless hedge-hyssop, common hedge hyssop |
Short's hedge-hyssop |
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Habit | Annuals. | Perennials. |
Stems | decumbent to ascending or erect, simple or few-branched, (5–)15–22 cm, glabrous or glandular-puberulent distally. |
decumbent, ascending, or erect, simple, sometimes few-branched, (8–)15–60 cm, sparsely to densely glandular-puberulent or glandular-pubescent proximally, glandular-puberulent distally. |
Leaves | blade linear-lanceolate to lanceolate-ovate, 7–20(–32) × 1.5–5(–7) mm, margins entire, rarely with 1 or 2 pairs of teeth distally, apex acuminate to attenuate, surfaces glabrate or glandular-pubescent. |
blade lanceolate-ovate to ovate or oblong, rarely linear-lanceolate in submersed forms, 5–28 × 4–15 mm, margins with (3–)5–10(–12) pairs of sharp teeth, apex acute, rarely obtuse, surfaces sparsely to densely glandular-puberulent. |
Pedicels | stout, (3–)7–25 mm, length 0.5–2.5 times bract, glabrous or obscurely glandular-pubescent distally; bracteoles 0. |
slender, 10–23 mm, length 0.5–2 times bract, sparsely to densely glandular-puberulent; bracteoles 2, 3.5–7 mm. |
Flowers | sepals distinct, lanceolate, (4–)7–11 mm; calyx slightly bilaterally symmetric; corolla 5–8(–10) mm, tube yellowish green or yellow, veins purple, limb white to pinkish white; style 2–3 mm. |
sepals distinct, lanceolate to elliptic or ovate-lanceolate, 3–7 mm; corolla 9–13 mm, tube yellowish brown, veins blue or lavender, limb white; style 3–4 mm. |
Capsules | subglobular, 3–6 × 3.5–5 mm. |
globular, 1–2.5 × 1–2.5 mm. |
Seeds | 0.4–0.9 mm. |
0.3–0.4 mm. |
2n | = 16. |
|
Gratiola ebracteata |
Gratiola viscidula |
|
Phenology | Flowering Apr–Sep(–Nov). | Flowering May–Oct. |
Habitat | Muddy to sandy stream banks, pond and lake shorelines, shallow water, wet meadows, vernal pools. | Bogs, wet meadows, floodplain wetlands, beaver ponds, stream banks, seeps, shores of ponds and lakes. |
Elevation | 0–2100 m. (0–6900 ft.) | 0–300 m. (0–1000 ft.) |
Distribution |
CA; ID; MT; OR; WA; BC
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DC; DE; FL; GA; KY; MD; NC; OH; SC; TN; VA; WV
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Discussion | D. M. Spooner (1984) examined intraspecific variation in Gratiola viscidula and concluded that recognition of infraspecific taxa is not warranted. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 17, p. 266. | FNA vol. 17, p. 269. |
Parent taxa | Plantaginaceae > Gratiola | Plantaginaceae > Gratiola |
Sibling taxa | ||
Synonyms | G. viscosa, G. viscidula subsp. shortii | |
Name authority | Bentham ex A. de Candolle: in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 10: 595. (1846) | Pennell: Torreya 19: 145. (1919) |
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