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Rhinanthus minor

(Little Yellow-Rattle)

Common Names

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Common Names in English:

Hayrattle, Little Yellow-Rattle, Little Yellowrattle, Yellow Rattle, Yellow-Rattle

Description

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Family Scrophulariaceae

Herbs, sometimes shrubs , rarely trees ; mostly autotrophic, less often hemiparasitic or parasitic. Stipules absent. Leaves alternate, opposite, whorled , or basally opposite and apically alternate, simple or sometimes pinnately dissected . Inflorescences racemes , spikes, or thyrsoid panicles, determinate or indeterminate, or flowers solitary. Flowers perfect , usually zygomorphic, rarely actinomorphic . Calyx often persistent , (2-) 4- or 5-lobed or -parted, variously connate . Corolla sympetalous ; limb (3 or) 4- or 5-lobed, often 2-lipped. Stamens mostly 4, didynamous , sometimes 1 or 2 staminodes present, less often 2 or 5 stamens; anther locules 1 or 2, equal or subequal , free or confluent . Nectary often present at base of ovary, ringlike, cupular, or reduced to a gland . Ovary superior, 2-loculed, rarely apically 1-loculed; ovules numerous , rarely 2 per locule, on axile placentas, anatropous or hemitropous . Style simple; stigma capitate, 2-lobed, or 2-lamellate. Fruit a capsule, septicidal , loculicidal, or septifragal, sometimes opening by pores or irregularly dehiscent , rarely a berry. Seeds minute or rarely conspicuous , sometimes winged ; testa often reticulate ; hilum lateral or ventral; endosperm fleshy or absent; embryo straight or curved .

About 220 genera and 4500 species: cosmopolitan ; 61 genera (seven endemic) and 681 species (415 endemic) throughout China but with a greater concentration in SW China.[1]

Genus Rhinanthus

Herbs, hemiparasitic. Leaves opposite. Racemes terminal . Calyx 4-lobed, upper side parted to ca. 1/2 length , other lobes shallow. Corolla 2-lipped; lower lip 3-lobed; upper lip galeate, extending into a short 2-lobed beak . Stamens 4, enclosed by galea; anthers connivent, locules transversely divergent, spurless, barbate along slit after dehiscence. Capsule loculicidal. Seeds several per locule, broadly winged .

About 50 species: North America, N Asia, Europe; one species in China.

Depending on the author , the number of species varies greatly in this genus.[2]

Physical Description

Habit: Forb/herb

Flowers: Bloom Period: June, July, August, September, October, November. • Flower Color: yellow

Size/Age/Growth

Size: 4-6' tall.

Habitat

Typically found at an altitude of 0 to 2,716 meters (0 to 8,911 feet).[3]

Biology

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Diet

[Migration]

Reproduction

Duration: Annual

Growth

Culture: Space 6-9" apart.

Soil: Minimum pH: 6.1 • Maximum pH: 7.8

Sunlight: Sun Exposure: Full Sun .

Moisture: Drought Tolerance: High

Temperature: Cold Hardiness: 3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b. (map)

Taxonomy

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Notes

Name Status: Accepted Name . Latest taxonomic scrutiny: 15-Mar-2000.

Name verified on 21-Sep-2000 by ARS Systematic Botanists.

Similar Species

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Members of the genus Rhinanthus

ZipcodeZoo has pages for 228 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them:

R. acuminatus · R. adriaticus · R. adulterinus · R. aestivalis · R. alectorolophus (European Yellowrattle) · R. alectorolophus aschersonianus · R. alectorolophus subsp. aschersonianus · R. alectorolophus subsp. freynii · R. alectorolophus var. bornmuelleri · R. alectorolophus var. wallrothii · R. alpestris · R. alpinus · R. alpinus carinthiacus · R. alpinus var. carpaticus · R. angustifolius · R. angustifolius grandiflorus · R. angustifolius halophilus · R. angustifolius subsp. grandiflorus · R. angustifolius subsp. halophilus · R. angustifolius var. aestivalis · R. angustifolius var. arenarius · R. angustifolius var. bosniacus · R. angustifolius var. lykae · R. angustifolius var. polycladus · R. antiquus · R. apenninus · R. apterus · R. apuanus · R. aristatus · R. aristatus f. gracilis · R. aristatus f. simplex · R. arvenensis · R. arvernensis · R. aschersonianus · R. asperulus · R. asperulus var. rohlenae · R. behrendsenii · R. beyeri · R. bicolor · R. bifidus · R. bipinnatifidus · R. borbasii · R. borbasii songaricus · R. borbasii var. rapaicsianus · R. borealis · R. borealis kyrollae · R. borealis kyrolliae · R. bosnensis · R. bosnensis var. siculorum · R. brigantiacus · R. buccalis · R. burnatii · R. calcareus · R. capensis · R. carinthiacus · R. chabertii · R. coccineus · R. colchicus · R. columnae · R. contrinensis · R. cretaceus · R. creticus · R. crista-galli · R. crista-galli var. drummond-hayi · R. cristagalli · R. cristatus · R. crus-galli · R. deminutus · R. dinaricus · R. drummond-hayi · R. elatior · R. elatus · R. elephas · R. ellipticus · R. facchinii · R. ferganensis · R. freynii · R. freynii var. croaticus · R. freynii var. sterneckii · R. gardineri · R. glaber · R. glacialis · R. glacialis gracilis · R. glacialis humilis · R. glacialis lanceolatus · R. glacialis simplex · R. glacialis subsp. aristatus · R. glacialis subsp. gracilis · R. glacialis subsp. humilis · R. glacialis subsp. lanceolatus · R. glacialis subsp. simplex · R. glacialis subsp. subalpinus · R. glauca · R. goniotrichus · R. gracilis · R. gracilis stojanovii · R. grandiflorus · R. groenlandicus · R. halophilus · R. hayekii

More Info

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Further Reading

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  • Tsoong Puchiu & Yang Hanbi, eds. 1979. Scrophulariaceae (1). Fl. Reipubl. Popularis Sin. 67(2): 1-431. Tsoong Puchiu, ed. 1963. Scrophulariaceae (2). Fl. Reipulb. Popularis Sin. 68: 1-449.
  • Tsoong Puchiu & Yang Hanbi, eds. 1979. Scrophulariaceae (1). Fl. Reipubl. Popularis Sin. 67(2): 1-431. Tsoong Puchiu, ed. 1963. Scrophulariaceae (2). Fl. Reipulb. Popularis Sin. 68: 1-449.
  • Notes

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    Contributors

    Data Sources

    Accessed through GBIF Data Portal November 18, 2007:

    Identifiers

    Footnotes

    1. Deyuan Hong, Hanbi Yang, Cun-li Jin, Manfred A. Fischer, Noel H. Holmgren & Robert R. Mill "Scrophulariaceae". in Flora of China Vol. 18 Page 1. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
    2. Deyuan Hong, Hanbi Yang, Cun-li Jin, Manfred A. Fischer, Noel H. Holmgren & Robert R. Mill "Rhinanthus". in Flora of China Vol. 18 Page 96. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
    3. Mean = 174.140 meters (571.325 feet), Standard Deviation = 253.330 based on 20,000 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
    Last Revised: 7/1/2009