Details for: PI 309663, Megathyrsus maximus (Jacq.) B. K. Simon & S. W. L. Jacobs, SILKY


Summary Data
Taxonomy:
Megathyrsus maximus (Jacq.) B. K. Simon & S. W. L. Jacobs
Top Name:
SILKY
Origin:
Donated – Jamaica
Received by NPGS:
08 Dec 1965
PI Assigned:
1965
Form Received:
Seed
Availability
FormQuantityNoteInventoryCart
Seed200 countPI 309663 or SD
 
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Core Passport Data
Taxonomy:
Megathyrsus maximus (Jacq.) B. K. Simon & S. W. L. Jacobs
Top Name:
SILKY
Origin:
Donated – Jamaica
Received by NPGS:
08 Dec 1965
PI Assigned:
1965
Form Received:
Seed
Source History
Donated
08 December 1965.
Jamaica

Donor(s):
Accession Names and Identifiers
SILKY
Type: Unverified name

Narrative
Megathyrsus maximus (Jacq.) B. K. Simon & S. W. L. Jacobs
Genus:
Megathyrsus
Family:
Poaceae (alt. Gramineae)
Subfamily:
Panicoideae
Tribe:
Paniceae
Subtribe:
Melinidinae
Nomen number:

447623
Place of publication:

Austrobaileya 6:572. 2003
Verified:
01/05/2005 by ARS Systematic Botanists.
Other conspecific taxa
Megathyrsus maximus (Jacq.) B. K. Simon & S. W. L. Jacobs var. coloratus (C. T. White) B. K. Simon & S. W. L. Jacobs (0 active accession[s])
Megathyrsus maximus (Jacq.) B. K. Simon & S. W. L. Jacobs var. maximus (0 active accession[s])
Megathyrsus maximus (Jacq.) B. K. Simon & S. W. L. Jacobs var. pubiglumis (K. Schum.) B. K. Simon & S. W. L. Jacobs (0 active accession[s])
Autonyms (not in current use), synonyms and invalid designations
Basionym
Panicum maximum Jacq.

Homotypic Synonym(s)
Panicum maximum Jacq. var. maximum
Urochloa maxima (Jacq.) R. D. Webster

Heterotypic Synonym(s)
Panicum hirsutissimum Steud.
Panicum maximum Jacq. var. hirsutissimum (Steud.) Oliv.
Panicum maximum Jacq. var. trichoglume Robyns

Common names
LanguageNameAlternate namenoteseqCitation
Englishgreen panic grass as Panicum maximum1't Mannetje, L. & R. M. Jones, eds. 1992. Forages. In: Faridah Hanum, I. & L. J. G. van der Maesen, eds., Plant Resources of South-East Asia (PROSEA) 4:172. Note: as Panicum maximum
EnglishGuinea grass  1Wiersema, J. H. & B. León. 1999. World economic plants: a standard reference CRC Press, Boca Raton, FL.
Frenchherbe de Guinée as Panicum maximum2Rehm, S. 1994. Multilingual dictionary of agronomic plants Note: as Panicum maximum
GermanGuineagras as Panicum maximum2Rehm, S. 1994. Multilingual dictionary of agronomic plants Note: as Panicum maximum
Italianerba della Guinea  2International Seed Testing Association. 1982. A Multilingual Glossary of Common Plant-Names 1. Field crops, grasses and vegetables, ed. 2.
Portuguese (Brazil)capim-colonião as Panicum maximum2Rehm, S. 1994. Multilingual dictionary of agronomic plants Note: as Panicum maximum
Spanishmijo de Guinea as Panicum maximum2Rehm, S. 1994. Multilingual dictionary of agronomic plants Note: as Panicum maximum
Spanishpasto Guinea as Panicum maximum2Rehm, S. 1994. Multilingual dictionary of agronomic plants Note: as Panicum maximum
Swedishguineagräs  2Aldén, B., S. Ryman, & M. Hjertson. 2012. Svensk Kulturväxtdatabas, SKUD (Swedish Cultivated and Utility Plants Database; online resource)
Annotations
  • Nomenclature Name Change: 05 Jan 2005, from Panicum maximum Jacq. to Megathyrsus maximus (Jacq.) B. K. Simon & S. W. L. Jacobs
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Observations

Phenotype Data

CategoryDescriptorDescriptionValueSample SizeStudyInventoryAvailability
GROWTHFoliage HeightFoliage height in decimeters9 S9.GRASSESPI 309663 or SD
GROWTHPlant HeightTotal plant height in decimeters15 S9.GRASSESPI 309663 or SD
GROWTHPlant WidthPlant spread in decimeters15 S9.GRASSESPI 309663 or SD
MORPHOLOGYFoliage DistributionDistribution of leaves on plant2 - Cauline S9.GRASSESPI 309663 or SD
MORPHOLOGYLeaf LengthLeaf length measured in centimeters25 S9.GRASSESPI 309663 or SD
MORPHOLOGYLeaf WidthLeaf width measured in millimeters19 S9.GRASSESPI 309663 or SD
MORPHOLOGYStem SizeStem size by code9 - Large S9.GRASSESPI 309663 or SD
MORPHOLOGYTillersAbundance of tillers produced1 - Abundant S9.GRASSESPI 309663 or SD
PHENOLOGYMaturityDays from March 15 planting to first flower124 S9.GRASSESPI 309663 or SD
PRODUCTIONFoliage AmountAbundance of foliage produced1 - Abundant S9.GRASSESPI 309663 or SD
PRODUCTIONSeed ProductionRelative seed production9 - Sparse S9.GRASSESPI 309663 or SD
STRESSWinter SurvivalResistance to winter damage9 - Complete winter kill S9.GRASSESPI 309663 or SD