Details for: PI 536715, Lactuca sativa L., 'Express Cos'


Summary Data
Taxonomy:
Lactuca sativa L.
Cultivar:
'Express Cos'
Origin:
Donated – Illinois, United States
Received by NPGS:
01 Dec 1989
Improvement Status:
Cultivar
Form Received:
Seed
Life Form:
Annual
Life Cycle:
Annual
Availability
FormQuantityNoteInventoryCart
Seed100 countPI 536715 92is SD
 
Restrictions
Plant material may be subject to additional regulations
https://www.nationalplantboard.org/uploads/1/3/6/7/136771235/florida_laws_and_regulations_2022july8.pdf
  • USA – Florida (See state regulation: Lettuce mosaic)
https://www.nationalplantboard.org/uploads/1/3/6/7/136771235/arizona_npb_summary_061124.pdf
  • USA – Arizona (See state regulations: Lettuce mosaic.)
There are no images for this accession.

Core Passport Data
Taxonomy:
Lactuca sativa L.
Cultivar:
'Express Cos'
Origin:
Donated – Illinois, United States
Received by NPGS:
01 Dec 1989
Improvement Status:
Cultivar
Form Received:
Seed
Life Form:
Annual
Life Cycle:
Annual
Source History
Donated
March 1963.
Illinois, United States

Donor(s):
Accession Names and Identifiers
'Express Cos'
Type: Cultivar name

W6 6382
Type: Site identifier
Group: W6
Western Regional Plant Introduction (W6) accession numbers
USDA-ARS, WRPIS

Narrative
Maturity 70 days. Leaves dark green. The "most dwarf" and earliest of all. Self-closing. Delicious flavor.
Lactuca sativa L.
Genus:
Lactuca
Section:
Lactuca
Family:
Asteraceae (alt. Compositae)
Subfamily:
Cichorioideae
Tribe:
Cichorieae
Subtribe:
Lactucinae
Nomen number:

21360
Place of publication:

Sp. pl. 2:795. 1753
Verified:
10/02/1996 by ARS Systematic Botanists.
Other conspecific taxa
Lactuca sativa L. var. angustana Irish (0 active accession[s])
Lactuca sativa L. var. capitata L. (6 active accession[s])
Lactuca sativa L. var. crispa L. (0 active accession[s])
Lactuca sativa L. var. longifolia Lam. (0 active accession[s])
Lactuca sativa L. var. sativa (0 active accession[s])
Autonyms (not in current use), synonyms and invalid designations
Common names
LanguageNameAlternate namenoteseqCitation
Englishgarden lettuce  1Huxley, A., ed. 1992. The new Royal Horticultural Society dictionary of gardening
Englishlettuce  1Wiersema, J. H. & B. León. 1999. World economic plants: a standard reference CRC Press, Boca Raton, FL.
Frenchlaitue  2Rehm, S. 1994. Multilingual dictionary of agronomic plants
Frenchlaitue cultivée  2Demilly, D. et al. 2001. Liste alphabétique des principales espèces de plantes cultivées et de mauvaises herbes. Noms latins et noms français, ed. 7 GEVES-SNES, Beaucouzé, France.
GermanGarten-Lattich  2Erhardt, W. et al. 2008. Der große Zander: Enzyklopädie der Pflanzennamen 1498.
Germangrüner Salat  2Rehm, S. 1994. Multilingual dictionary of agronomic plants
GermanKopfsalat  2Rehm, S. 1994. Multilingual dictionary of agronomic plants
Italianlattuga  2International Seed Testing Association. 1982. A Multilingual Glossary of Common Plant-Names 1. Field crops, grasses and vegetables, ed. 2.
Portuguesealface  2Rehm, S. 1994. Multilingual dictionary of agronomic plants
Spanishlechuga  2Rehm, S. 1994. Multilingual dictionary of agronomic plants
Swedishsallat  2Aldén, B., S. Ryman, & M. Hjertson. 2012. Svensk Kulturväxtdatabas, SKUD (Swedish Cultivated and Utility Plants Database; online resource)
Transcribed Koreansangchu  2Mun-Chan, B. et al. 1986. A checklist of the Korean cultivated plants. Kulturpflanze 34:105.
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Observations

Phenotype Data

CategoryDescriptorDescriptionValueSample SizeStudyInventoryAvailability
MORPHOLOGYHead typeHead typeCOS - ROMAINE LETTUCE.HEADTYPE.YR.RYDERPI 536715 2000ic SDNot Available
MORPHOLOGYHead typeHead typeCOS - ROMAINE (100%)20LETTUCE.2010.SALINAS.HELLIER(1)PI 536715 92i SDNot Available
MORPHOLOGYSeed colorSeed colorWH - white (100%) LETTUCE.SEEDCOLOR.2015.PULLMANPI 536715 92i SDNot Available
MORPHOLOGYSeed weight 100Weight of 100 seeds in grams.0.09 LETTUCE.SEEDWEIGHT.WRPISPI 536715 92i SDNot Available