Medicinal and aromatic plants – industrial profiles

L. buchii
Webb and Berthel. (
L. pinnata
var. 
buchii
(Webb and Berthel.) Benth.)
Shrub 50–70 cm. Leaves 5–8 cm, deeply dissected pinnatisect, ovate, lobes linear to 
obovate,
pedicel 0.5–1 cm. Whole plant with a characteristic grey felt. Inflorescence spike up to 10 cm,
sometimes branched at the base of the main spike. Bract ovate with acute apex, typically with
five rather indistinct nerves, about 0.5–0.75
the length of calyx. Upper middle tooth of calyx
broadly triangular in shape. Corolla tube mauve blue. Canary Islands (Tenerife). Occasionally 
cultivated as an ornamental.
L. buchii
var. 
buchii
– flower spikes typically short 4–6 cm, branched many times and clus-
tered at the end of the flower stalk. Leaf pinnatisect the lobes usually obovate, the terminal
lobe 
 
diamond shaped. Northern region of Tenerife, particularly the Anaga Peninsula.
L. buchii
var. 
gracile
M.C. León – flower spike typically long and slender usually over 10 cm,
branched only once or twice. Leaf pinnatisect the lobes linear, the terminal lobe 
linear. Southern region of Tenerife, Teno region.
22
Tim Upson
Figure 2.12 L. canariensis
– plant in full bloom, Tenerife near Chio. (See Color Plate VII.)

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L. buchii
var. 
tolpidifolia
(Svent.) M.C. León – leaves linear lanceolate in outline, with 
irregular shallow to deep lobes. Teno region of Tenerife.
11.