Compilation
Hermbstaedtia rogersii

Annual herb, erect, simple or branched from the base upwards, or occasionally branched from the base and decumbent, c. 15–60 cm. tall. Stem and branches terete and sulcate to more or less quadrangular, striate, thinly to moderately furnished with pale to yellowish multicellular hairs. Leaves linear to linear-oblanceolate, 15–60 (80) × 1–6 (8) mm., acute or subacute, attenuate to the base, subglabrous or the midrib and primary venation of the inferior surface together with the margins more or less furnished with divergent scabrid hairs, surfaces with softer multicellular hairs; superior and branch leaves smaller and narrower, small-leaved axillary shoots commonly present. Inflorescences terminal on the stem and branches, 1.5–15 (25) × (0.75) 1–1.5 cm., spicate, pinkish-white to bright magenta, the axis densely furnished with multicellular hairs. Bracts narrowly lanceolate, 2–4 mm. long, hyaline with a whitish central band, very acute with a shortly excurrent midrib, glabrous or ciliate, sometimes erose-denticulate; bracteoles similar but somewhat shorter and broader. Tepals elliptic-oblong, 3.5–6 mm. long, glabrous, the outer with a shortly excurrent midrib and 1–2 progressively shorter pairs of laterals (one or more of which is occasionally branched), narrowly hyaline-bordered; inner tepals similar but slightly narrower, more narrowed below and often only 3-nerved. Stamens fused into a tube for usually two thirds to three quarters of their length, 1–1.5 mm. shorter than the tepals; free apical portion more or less rounded, truncate or incised on each side of the antheriferous apex. Ovary c. 3–7-ovulate, rounded or slightly tapering above; stigmas (2) 3, spreading or recurved and much shorter than the 1.5–3 mm. long, finally more or less exserted style. Capsule c. (2) 3–4 mm. long, oblong-ovoid, circumcissile, the lid campanulate and rather shortly narrowed into the style, almost smooth or mammilose with low to prominently rounded colourless verrucae. Seeds c. 1 mm. in diam.