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Astragalus subuliformis

A small, semi-woody legume native to Crimea, 10–25 cm tall with threadlike leaves and an awl-shaped calyx, distributed from the Balkans to the Caucasus and Russia, thriving in steppe habitats on deep, well-drained soils in full sun and bearing yellowish flowers in summer.

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Common Names

Астрагал Шиловидный, Астрагал Шилоподобный

Summary

This perennial subshrub native to Crimea with European and Caucasian distributions grows to about 5–10 cm tall, has above-ground, partly woody stems, and is densely covered with two-ended hairs; leaves are 3–6 cm long with 5–7 pairs of narrowly linear, threadlike leaflets, with undersides hairy and tops smooth; inflorescences are 2–5 cm long bearing 3–6 flowers, a tubular calyx 8–10 mm long densely hairy with awl-shaped teeth, and flowers ranging from purple or violet to pale yellow or white; pods are cylindrical 1.8–2.7 cm long and flowering occurs May–July, while its habitat includes rocky calcareous slopes and steppes and it is xerophilous and light-loving.

Under cultivation, full sun on well-drained soil is preferred, with potential for open-ground growth or alpine greenhouse settings; spring sowing after scarification yields germination in 1–3 months at 10–13 °C, and cuttings can be taken in late summer; the plant’s compact size and colorful flowers provide ornamental value in sunny, drought-tolerant plantings and similar landscapes.

Lifecycle

Perennial

Height

2-10 inches

Spread

2-4 inches

Sunlight Requirements

Ideally full sun.

Soil Type

Deep, well-drained, rocky limestone soil

Soil Drainage

Well-drained

Bloom Color

White, Yellowish

Bloom Time

Spring and Summer

Foliage Color

Yellowish, gray-blue (with a waxy bloom)

Fall Foliage Color

Yellowish

Seasons of Interest

Spring and Summer

Propagation Methods

Seeds (spring sowing after scarification; germination 1–3 months; 10–13°C) and Cuttings (end of summer)

References

Astragalus subuliformis DC.. skalnicky.kadel.cz.
Астрагал шиловидный - Astragalus subuliformis - Оп…. plantarium.ru.
Astragalus subuliformis - DC.. eunis.eea.europa.eu.
Astragalus subuliformis. europlusmed.org.
Astragalus subuliformis (ASASF)[Overview]| EPPO Gl…. gd.eppo.int.
Astragalus subuliformis DC. | Plants of the World …. powo.science.kew.org.
Astragalus subuliformis · iNaturalist. inaturalist.org.
World Flora Online. worldfloraonline.org. June 2024.