Flora of North America species comparison

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Schistophragma

schistophragma
Habit Herbs, annual.
Stems

erect or ascending, glandular-hairy.
Leaves

cauline, opposite;

petiole present;

blade not fleshy, not leathery, margins pinnatifid [entire].
Inflorescences

axillary, flowers solitary;

bracts absent.
Pedicels

present;

bracteoles absent.
Flowers

bisexual;

sepals 5, basally connate, calyx bilaterally symmetric, tubular, lobes narrowly triangular;

corolla pink or purple, bilaterally symmetric, bilabiate, tubular, tube base not spurred or gibbous, throat not densely pilose internally, lobes 5, abaxial 3, adaxial 2;

stamens 4, proximally adnate to corolla, didynamous, filaments glabrous;

staminode 0;

ovary incompletely 2-locular, placentation axile;

stigma capitate, slightly 2-lobed.
Fruits

capsules, dehiscence septicidal.
Seeds

30–100, yellow or brown, spirally ridged, ovoid or fusiform, wings absent.
× = 20.

Schistophragma
Distribution
from USDA
sw United States; Mexico; Central America; South America (Colombia)
[BONAP county map]
Discussion

Species 3 (1 in the flora).

Schistophragma is related to Leucospora, Limnophila, and Stemodia, and shares with them distinctive, stipitate anthers and a curved, capitate and two-lobed stigma. They are all in Gratioleae. Morphological characters have not been sufficient to clarify the relationships of the genera in this tribe, and molecular data are not available for many of the species, including S. intermedium.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 275. Author: Kerry A. Barringer.
Parent taxa Plantaginaceae
Subordinate taxa
S. intermedium
Name authority Bentham: in S. L. Endlicher, Gen. Pl. 9: 679. (1839)
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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