spicate

Spiraea.—Vigorous growing plants of great beauty, preferring good, deep, rather moist soil; the flowers small but very abundant, in large corymbose or spicate panicles.

From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 7 "Horticulture" to "Hudson Bay" by Various

The yellow flowers are produced on spicate racemes, while the leaves are alternate, smooth and spear-shaped.

From Our Flowering Shrubs and how to know them by Anonymous

More hispid and rough, very leafy; leaves rigid, pinnately parted into 3–7 narrowly linear acute divisions, those subtending the densely spicate flowers similar and crowded; corolla over 1´ long.—Prairies,

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Asa Gray

Anthers of the longer stamens glandular-tipped; flowers showy, from depressed-capitate becoming spicate.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Asa Gray

Spikelets several-flowered, narrow, erect and scattered along the slender rhachis of the long spicate spikes; flowers all perfect or the uppermost staminate.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Asa Gray