Sabatia difformis
Sabatia stellaris
lance-leaf sabatia, lanceleaf rose gentian, white sabatia
annual marsh-pink or sea-pink, annual rose-gentian, rose of Plymouth, salt-marsh pink, sea pink
1–several, clustered, proximally terete, distally sometimes ± 4-angled but not winged, 2.5–10.5 dm, branching opposite throughout.
single, terete or distally 4-angled, 0.2–5(–8) dm, branching alternate.
all cauline at flowering time;
blade linear-lanceolate to narrowly or occasionally widely elliptic-ovate, 1–4(–6) cm × 3–14(–22) mm.
all cauline at flowering time;
blade linear to elliptic or obovate, 0.5–6(–9) cm × (1–)2–10(–15) mm.
corymboid dichasia of compact cymules;
pedicels 1–8(–15) mm.
open, few-flowered cymes or solitary flowers;
pedicels (10–)40–100(–150) mm.
5(or 6)-merous;
calyx tube shallowly campanulate, 1–2(–3) mm, midveins somewhat more prominent than commissural veins, low-ridged, commissural veins scarcely ridged, lobes narrowly lanceolate to filiform, (2–)4–9(–14) mm;
corolla white throughout (sometimes drying cream to yellow), tube 2.5–6 mm, lobes oblanceolate, (5–)7–21 × 2.5–8 mm, apex rounded;
anthers recurving.
(4- or)5-merous;
calyx tube obconic to ± campanulate, 1.5–6 mm, midveins slightly more prominent than commissural veins, veins not ridged or midveins shallowly ridged proximally, lobes setaceous to linear, (4–)6–11(–22) mm;
corolla pink or rarely white, eye yellow, projections of eye into corolla lobes 3-lobed, usually with a red border, tube 3–8 mm, lobes oblanceolate or narrowly to medium-widely spatulate-obovate or elliptic, 5–20 × 2–10 mm, apex rounded to obtuse;
anthers coiling circinately.
= 36.
= 36 + 0–4B.
Sabatia difformis
Sabatia stellaris
A historical record of Sabatia difformis from Maryland is documented, but no recent collections or reports are known from that state. Old reports of S. lanceolata from New York and Tennessee, for which no documentation was found in studies for this flora, are believed to be erroneous, probably based on misidentifications or misapplications of the name.
The name Sabatia paniculata (Michaux) Pursh is typified by a specimen of S. difformis but has often been misapplied to S. quadrangula (R. L. Wilbur 1955).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
The range of Sabatia stellaris extends to higher elevations in Mexico.
Sabatia stellaris is known only historically from Massachusetts; although there is at least one correctly identified specimen, some reports from that state were based on misidentified specimens of S. angularis and perhaps S. campanulata (studies for this flora). Specimens from Pennsylvania have been reidentified in studies for this flora as S. campanulata. The basis for an old, undocumented report of S. stellaris from Maine is unknown.
Specimens of Sabatia campanulata and S. stellaris are difficult to distinguish if lacking the basal parts, and misidentifications have led some botanists to consider these species as not distinguishable. The mid-stem leaves of S. campanulata, below the first branching, are usually narrowly oblong to oblong-lanceolate, widest near or proximal to the middle, and rounded at the base; those of S. stellaris, although variable in proportions, are usually widest distal to the middle and cuneate at the base. The calyces of S. campanulata are usually more than 0.8 times as long as and often longer than the corollas; those of S. stellaris are usually about 0.75 times as long as the corollas, but both species occasionally deviate from these proportions. The corolla lobes of S. stellaris are usually obovate and less than twice as long as wide. The two style branches (including the stigmas) of S. campanulata are slightly longer than the uncleft style below them; those of S. stellaris are much longer than the very short uncleft portion. In S. campanulata, the ultimate lateral (later-flowering) branches of the inflorescence usually bear a pair of bracts below a solitary true pedicel; in S. stellaris, the ultimate lateral branching usually, but not invariably, gives rise directly to true pedicels without bracts.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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