Glossary: Flower / inflorescence morphology

Purdue Arboretum botanical terminology reference and learning database.

368 Botanical Definitions 10 Categories A–Z Alphabetical Index Illustrated Growth Forms
Active Category Filter

Flower / inflorescence morphology

← View All Categories
🌳

Illustrated Growth Forms & Tree Silhouettes

Compare visual architectures: fastigiate, columnar, weeping, spreading, and more.

Fastigiate Columnar Pendulous / Weeping
Try searching:
Letter: S Showing definitions beginning with this letter.
× Clear letter filter
Showing 8 definitions
Synonyms: Spathes

Spathe A bract or leaf encasing a flower cluster. This feature helps explain how flowers are arranged, how pollination happens, or how seeds begin to form. Did you know? The colorful part of a peace lily is a spathe, a modified bract, not a true petal.

Synonyms: Catkin, Catkins, Spadix, Spadixes, Spicate, Spicates, Spikelet, Spikelets, Spikes

Spike A flowering stem with flowers directly attached. This feature helps explain how flowers are arranged, how pollination happens, or how seeds begin to form.

Synonyms: Cone, Cones, Strobile, Strobiles, Strobiluses

Strobilus A cone. This feature helps explain how flowers are arranged, how pollination happens, or how seeds begin to form. Did you know? Pine cones are strobili; their scales protect seeds until conditions are right for release.

The Purdue Arboretum is a collaboration between the Department of Horticulture and Landscape Architecture and Administrative Operations

Purdue Arboretum, 625 Agriculture Mall Dr, West Lafayette, IN, 47907
© 2026 Purdue UniversityAn equal access/equal opportunity universityCopyright ComplaintsMaintained by Purdue Arboretum Explorer
Contact Purdue Arboretum at arboretum@purdue.edu for accessibility issues with this page | Accessibility Resources | Contact Us