Betoideae

Subfamily of Amaranthaceae

Food, Plant source foods, Plants (Plantae), Flowering plats (angiospermae), Mesangiosperms, Eudicots, Core eudicots, Superasterids, Caryophyllales, Amaranthaceae

Consumption area(s): Earth

Note: For better understanding, please read the article on flowering plants (angiospermae) first. If you come across unfamiliar words, you can click on any highlighted term to open the glossary with definitions of key botanical terms.

Introduction

The Betoideae represent a relatively limited subfamily within the broader group of flowering plants classified under the Amaranthaceae. Despite their small size, they hold notable botanical and agricultural importance. Among their most recognizable representatives are several cultivated forms derived from Beta vulgaris. These include familiar crops such as beet, sugar beet, chard, and mangelwurzel, all of which are not separate species but rather distinct cultivars selected for different uses and characteristics.

Description of Betoideae

Members of the Betoideae display a range of growth forms, including annual, biennial, and perennial herbs, as well as climbing plants and occasionally small woody shrubs. Their flowers are typically composed of five tepals and five stamens, although exceptions exist, which shows a reduced structure with three tepals and a single stamen. The fruit is characteristically a capsule that splits open along a circular line, releasing the seeds.

Within the subfamily, structural differences distinguish the main tribes. In Beteae, the perianth becomes hardened at the base when the fruit develops, and the stamens arise from a thickened ring-like swelling surrounding the exposed portion of the ovary. By contrast, in Hablitzieae, the tepals remain unchanged and thin, and the stamens are fused at their base, forming a delicatering.

Classification of Betoideae

This subspecies is further subdivided into genera. Among these are:

• Beta (beet, chard)
• Hablitzia (Caucasian spinach/climbing spinach)
• Patellifolia (wild beet)