The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

granite hedge-hyssop

Boggs Lake hedge-hyssop

Habit Annuals. Annuals.
Stems

erect, simple, sometimes few-branched, (7–)9–21(–29) cm, glabrous or glabrate proximally, glandular-puberulent distally.

ascending to erect, simple or few-branched, 2–12 cm, glabrous proximally, glabrous or glandular-puberulent distally.

Leaves

blade lanceolate-ovate to oblong, not falcate, 6–13(–18) × 1–3(–5) mm, margins entire or with 1 or 2(or 3) pairs of blunt teeth distally, apex obtuse, surfaces glabrate or glandular-puberulent.

blade linear-lanceolate to oblanceolate, elliptic, or oblong, 4–8(–20) × 1.5–3.5 mm, margins entire, apex obtuse to rounded, surfaces glabrous.

Pedicels

slender, (5–)8–17(–22) mm, length 0.9–2(–2.3) times bract, sparsely to densely glandular-puberulent;

bracteoles 2, 2–4.5 mm.

slender, 2–14(–28) mm, length 0.9–2.3 times bract, sparsely to densely glandular-puberulent;

bracteoles 0.

Flowers

sepals distinct, lanceolate, 2–4.5 mm;

corolla 7–9 mm, tube and limb white tinged with pink or purple, veins lavender or purple;

style 1.9–2.2 mm.

sepals connate proximally, calyx distinctly bilaterally symmetric, lobes elliptic-oblanceolate, 3.5–6 mm;

corolla 4–7.5(–9) mm, tube yellow or greenish yellow, veins purple, limb white abaxially, greenish yellow adaxially;

style 1.5–2 mm.

Capsules

subglobular to ovoid, 2.5–3.6 × 2–3.7 mm.

subglobular to ovoid, 3.5–4.7 × 3–4.5 mm.

Seeds

0.3–0.5 mm.

0.5–0.7 mm.

Gratiola graniticola

Gratiola heterosepala

Phenology Flowering Apr–May. Flowering Apr–Sep.
Habitat Seasonal pools on granite outcrops. Shallow water and exposed mud of vernal pools, wet meadows, lake margins.
Elevation 100–300 m. (300–1000 ft.) 0–1900 m. (0–6200 ft.)
Distribution
from FNA
GA; SC
[BONAP county map]
from FNA
CA; OR
[WildflowerSearch map]
[BONAP county map]
Discussion

Gratiola graniticola is known from about a dozen counties in the southeastern piedmont of northern Georgia and north-central South Carolina, where it occurs only on granite flatrocks (D. Estes and R. L. Small 2007; D. F. Brunton 2009).

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

Source FNA vol. 17, p. 267. FNA vol. 17, p. 267.
Parent taxa Plantaginaceae > Gratiola Plantaginaceae > Gratiola
Sibling taxa
G. amphiantha, G. brevifolia, G. ebracteata, G. floridana, G. heterosepala, G. lutea, G. neglecta, G. quartermaniae, G. ramosa, G. torreyi, G. virginiana, G. viscidula
G. amphiantha, G. brevifolia, G. ebracteata, G. floridana, G. graniticola, G. lutea, G. neglecta, G. quartermaniae, G. ramosa, G. torreyi, G. virginiana, G. viscidula
Name authority D. Estes: J. Bot. Res. Inst. Texas 1: 166, figs. 3A,D, 9. (2007) H. Mason & Bacigalupi: Madroño 12: 150, figs. 1–8. (1954)
Web links