How to identify Cluster-lilies (Brodiaea)

Photo By Liam O'Brien , used under CC-BY-4.0 /Cropped and compressed from original

How to identify Cluster-lilies (Brodiaea)

Cluster-lilies, also known as Grass nuts, Starflowers

Cluster-lilies boasts striking flowers that typically bloom in the late spring. The plants usually attain heights ranging from 12 to 18 inches (30 to 45 cm) with narrow, grass-like leaves. Their distinctive inflorescences are composed of clusters of tubular flowers atop leafless stems, showcasing a palette of vibrant colors, including blues, purples, and whites. Each funnel-shaped bloom, made up of six petals, can measure around 1 to 1.5 inches (2.5 to 3.8 cm) in diameter. Cluster-lilies's flowers are known for their symmetrical form, and they commonly attract pollinators like bees.

Lifespan: Perennial

Leaf Type: Deciduous

Quickly Identify Cluster-lilies

Flowers boast six petals, forming tubular shape; colors include blues, purples, and whites.

Leaves are basal, narrow, linear, and smooth, with parallel and faint veins.

Stem is slender, unbranched, and sturdy, reaching heights of 12-24 inches (30-60 cm).

Fruit is an ovoid capsule with black seeds exhibiting unique crusty coating.

Distinctive inflorescences of tubular flowers atop leafless stems.

Detailed Traits of Cluster-lilies

Leaf Features

The leaves of cluster-lilies are basal and narrow, generally numbering between one and six per plant. Each leaf is linear and crescent-shaped in cross section, typically measuring between 12 and 24 inches (30 to 60 cm) in length. The texture is smooth, and the color ranges from light to medium green. The veins are parallel and faint, contributing to the leaf's slender appearance and flexibility. These features make the leaves identifiable and characteristic of cluster-lilies.

Learn About the Leaf Glossary

Flower Features

The flowers of cluster-lilies feature six blue to purple tepals that form a tubular shape, joined at the base. The tepals measure approximately 1 inch (2.5 cm) long. The outer three tepal lobes are noticeably narrower than the inner three. These flowers grow on a flowering stem, typically carrying several blooms per stem. While the specific blooming period varies, they generally appear in late spring to early summer. The floral scent remains subtle, enhancing their appeal.

Learn About the Flower Glossary

Stem Features

The stem of cluster-lilies is slender and wiry, typically reaching heights of 12-24 inches (30-60 cm). It is generally unbranched and smooth to touch, displaying a green color that may become darker as the plant matures. The stem is notably straight and sturdy, making it an essential support structure for the blossoms. Its thin, elongated form is a vital characteristic for identification, standing out clearly during the flowering season.

Learn About the Stem Glossary

Fruit Features

The fruit of cluster-lilies is an ovoid capsule, which, when mature, opens to release its seeds. These seeds are notable for their deep black hue and can range from a round to flattened shape. Each seed possesses a unique, crusty coating embellished with longitudinal striations, providing them with a distinct textured appearance. This coating not only contributes to the seed's characteristic look but also aids in its identification among novice plant enthusiasts.

Learn About the Fruit Glossary

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