Keyed Out #042 — Enkianthus serrulatus

Question 1

Ten {stamens} stand against only five short lobes on a {corolla} fused into a small waxy pitcher, and each {anther} bears a pair of slender {awns} on its back.

Accepted Answer

heath family

Question 2

Its finest roots are little more than threads permeated by a fungal partner that mines nitrogen from raw acid humus, and the plant yellows and fails on limy ground rather than housing its helpers in visible nodules.

Accepted Answer

Ericaceae

Question 3

The flowers hang together in one drooping cluster whose stalks all spring from a single point at the shoot tip, not strung one after another along an elongating axis.

Accepted Answer

Enkianthus

Question 4

Side branches leave the main stems in regular horizontal storeys, and each storey ends in a crowded rosette of leaves rather than carrying them spaced singly along undifferentiated shoots.

Accepted Answer

Enkianthus

Question 5

The blades are thin and papery, shed in autumn, and edged the whole way round with fine even teeth rather than thick and leathery with a near-smooth margin that persists through winter.

Accepted Answer

Enkianthus serrulatus

Question 6

The flowers are pure white, about 0.4 inch (1 cm) long, carrying no coloured veining or striping at all, and they open in April on wood that is still all but bare.

Accepted Answer

Enkianthus serrulatus