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Graminoid

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Germinating fescue grass with long, blade-like leaves

In botany and ecology, a graminoid refers to a herbaceous plant with a grass-like morphology,[1] i.e., elongated culms with long, blade-like leaves. They are contrasted with forbs, herbaceous plants without grass-like features.

The plants most often referred to include the families Poaceae (grasses in the strict sense), Cyperaceae (sedges), and Juncaceae (rushes). These are not closely related but belong to different clades in the order Poales. The grasses (Poaceae) are by far the largest family, with some 12,000 species.

Ecology

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Besides their similar morphology, graminoids share a widespread occurrence and often dominance in open habitats such as grasslands or marshes. They can, however, also be found in the understory of forests. Sedges and rushes tend to prefer wetter habitats than grasses.

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Etymology

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The word graminoid is derived from the Latin grāmen, meaning both “grass” and “herb”, with the suffix -oid denoting “-like; resembling, characteristic of”.

See also

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References

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  1. ^ Park, Chris; Allaby, Michael (2017). A Dictionary of Environment and Conservation. Oxford University Press. doi:10.1093/acref/9780191826320.001.0001. ISBN 9780191826320.