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Rhinanthus minor ssp. minor
Rhinanthus minor L. ssp. minor
Little Yellowrattle, Yellow Rattle
Scrophulariaceae (Figwort Family)
Synonym(s): Rhinanthus borealis ssp. kyrolliae, Rhinanthus crista-galli, Rhinanthus crista-galli var. fallax, Rhinanthus kyrolliae, Rhinanthus rigidus, Rhinanthus stenophyllus
USDA Symbol: RHMIM
USDA Native Status: L48 (N), CAN (I), SPM (I)
An erect plant with widely spaced, opposite leaves on stem and bilaterally symmetrical flowers in spikes at top; all flowers turned to one side, each with a yellow corolla protruding from a flat calyx (as if pressed from sides).
This flower is unmistakable, but its technical classification is unsettled. Around the Northern Hemisphere there are numerous regional variants, many of which have been named as species that are accepted by some authorities but not by others. This plant is also known as Rhinanthus crista-galli; that scientific name means "snout-flower cock's comb," probably referring to the comb-like row of calyces (plural for calyx) and the snout-shaped corolla. The plant, though able to make its own food through photosynthesis, is semi-parasitic, obtaining some of its nutrients from the roots of other plants. As the common name implies, the seeds rattle in the capsule at maturity.
From the Image Gallery
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Plant Characteristics
Duration: AnnualHabit: Herb
Fruit Type: Capsule
Size Notes: Up to about 20 inches tall.
Bloom Information
Bloom Color: Yellow , BlueBloom Time: May , Jun , Jul , Aug , Sep
Distribution
USA: AZ , CO , ID , MA , ME , MT , ND , NM , NY , WA , WINative Distribution: Native in the states listed and introduced in Canada per USDA Plants. Flora of North America considers it introduced throughout North America.
Native Habitat: Meadows and fields, thickets, and moist slopes.
Find Seed or Plants
View propagation protocol from Native Plants Network.
Web Reference
Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter
Additional resources
USDA: Find Rhinanthus minor ssp. minor in USDA PlantsFNA: Find Rhinanthus minor ssp. minor in the Flora of North America (if available)
Google: Search Google for Rhinanthus minor ssp. minor
Metadata
Record Modified: 2023-05-22Research By: TWC Staff