Flora of North America species comparison

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Sabatia macrophylla

large-leaf sabatia, largeleaf rose gentian
Habit Herbs perennial, not stoloniferous.
Stems

several, clustered, terete, 5–14 dm, branching opposite throughout.
Leaves

all cauline at flowering time;

blade lanceolate to ovate-oblong or ovate, 2.5–6(–8.5) cm × 5–30(–45) mm.
Inflorescences

corymboid dichasia of compact cymules;

pedicels 1–5 mm.
Flowers

5-merous;

calyx tube campanulate, 1–2 mm, mid- and commissural veins about equally prominent, not ridged or with low, narrow ridges, lobes triangular to linear-subulate, 0.1–3 mm;

corolla white or cream throughout, tube 2–4 mm, lobes oblong-oblanceolate, 4–7(–9) × 2–3(–4) mm, apex rounded to obtuse;

anthers recurving.

Sabatia macrophylla
Distribution
from USDA
se United States
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Discussion

Varieties 2 (2 in the flora).

The inflorescences of Sabatia macrophylla are nearly flat-topped and usually contain more flowers than those of other Sabatia species. The relatively small, closely spaced flowers give this species a distinctive aspect. It further differs from S. difformis in its glaucous stems and leaves.

Sabatia macrophylla is restricted to central and southern Georgia, northern Florida, and southern Alabama, Louisiana, and Mississippi, mostly but not exclusively (in Georgia) near the Gulf Coast. The range of var. macrophylla extends farther west than that of var. recurvans.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Calyx lobes erect or spreading, shorter than or ± as long as tube.
var. macrophylla
1. Calyx lobes recurved, longer than tube.
var. recurvans
Source FNA vol. 14.
Parent taxa Gentianaceae > Sabatia
Sibling taxa
S. angularis, S. arenicola, S. arkansana, S. brachiata, S. brevifolia, S. calycina, S. campanulata, S. campestris, S. capitata, S. decandra, S. difformis, S. dodecandra, S. foliosa, S. formosa, S. gentianoides, S. grandiflora, S. kennedyana, S. quadrangula, S. stellaris
Subordinate taxa
S. macrophylla var. macrophylla, S. macrophylla var. recurvans
Name authority Hooker: Compan. Bot. Mag. 1: 171. (1836) — (as Sabbatia)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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