Castilleja Mutis ex L. fil.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1972, Flora Europaea. Volume 3. Diapensiacea to Myoporaceae, Cambridge: Cambridge University Press : 253

26. Castilleja Mutis ex L. fil. 1

Perennial herbs, probably hemiparasitic, with alternate, simple, sessile leaves. Flowers zygomorphic, in dense, terminal, bracteate, spike-like racemes; bracts large, coloured. Calyx tubular, laterally compressed, 2- to 4-lobed. Corolla with a long tube and 2-lipped limb; lips subparallel, the upper laterally compressed, entire, the lower shorter, 3-lobed. Stamens 4, didynamous, included under upper lip of corolla; anthers with one lobe medifixed, the other pendent. Stigma capitate. Capsule loculicidal; seeds numerous.

Literature: O. V. Rebristaja, Nov. Syst. Pl. Vase. (Leningrad) 1964: 283-311 (1964). 1 Corolla 20-22 mm, the lower lip nearly as long as the upper; capsule 8-10 mm 2. schrenkii

1 Corolla 22-30 mm, the lower lip c. f as long as the upper; capsule 10-15 mm

2 Densely grey-pubescent; stems 30-50 cm; bracts ovate-lanceolate, the lower usually ± entire 1. pallida

2 Sparsely hairy, not grey; stems 10-30 cm; bracts ovate, all ± pinnatifid 3. lapponica