Chaenostoma polelense subsp. fraternum (Hilliard) Kornhall

Perennial herb well branched from the base and above, main stems up to c. 450 mm long, up to c. 34 mm in diam., erect or decumbent, glandular-pubescent, hairs c. 0.5-1 mm long, leafy. Leaves opposite, becoming alternate only near the tips of the inflorescence branches, these often flexuous, largest blades 13-35 x 9-26 mm, elliptic or ovate, cuneately contracted into a petiolar part 0-6 mm long (proportion of blade to petiole (4-)7-25:1), apex usually acute, sometimes obtuse, margins coarsely and irregularly toothed, largest teeth c. 1.5-3.5 mm along top edge, denticulate or not, both surfaces glandular-pubescent as stems, glistening glands as well. Flowers ultimately innumerable, solitary in the leaf-axils, passing into bracteate racemes, loosely panicled. Pedicels (longest) 6-30 mm. Calyx obscurely bilabiate, tube c. 1 mm long, posticous lobes 3-5 x 0.7-1 mm, anticous lobes scarcely broader, glandular-pubescent, hairs up to c. 0.4-0.8 mm long. Corolla tube 6.5-9.5 x 2.5-3.6 mm in throat, funnel-shaped, limb nearly regular, c. 6-11 mm across, posticous lobes 2.1-4.5 x 1.6-3.5 mm, anticous lobe 2.4-4.2 x 1.7-3.6 mm, all elliptic, usually white though recorded as 'yellowish', tube yellow/orange, glandular-puberulous outside, hairs up to 0.25-0.4 mm long, oblong glistening glands as well, well bearded inside, hairs clavate. Stamens 4, anticous pair exserted, filaments 2-3 mm long, posticous pair included, filaments 0.8-2 mm long, anthers 0.8-1.5 mm long. Stigma 0.5-2 mm, exserted. Style 5.5-8 mm, occasional glistening glands. Ovary 1.4-1.7 x 0.8-1 mm, broad bands of glistening glands on sutures, also scattered on top of ovary and up style. Capsules c. 34.5 x 2.5-3 mm. Seeds c. 0.8 x 0.4 mm, pallid.