Table 6. Traits conferring phenotypic identity to novel weedy rice and co-occurring cultivated rice in California.
| Phenotype | California Weedy Rice (CWR) | California Cultivated Rice (medium-grain CCR1) | California Cultivated Rice (gourmet, CCR2) |
|---|---|---|---|
| Pericarp | Pigmented (red-reddish brown) | Non-pigmented (white) | Pigmented (brown) |
| Spikelet Fertility | Low (76% or lower) | High (78–87%) | High (78–87%) |
| Awnedness | Long, fully developed awns | Awnless | Very short awns |
| Stature | Tall (110 cm average height) | Short (77–104 cm average height) | Short (77–104 cm average height) |
| Culm Habit | Acute culm angle | Spread habit (obtuse culm angle) | Spread habit (obtuse culm angle) |
| Tillers | High number of tillers | Fewer tillers | Fewer tillers |
| Panicles | More grains (22+ per panicle); More panicles, opened | Compact panicles; Fewer grains (10–17 per panicle) | Compact panicles; Fewer grains (10–17 per panicle) |
| Texture | Hispid-scabrous to tip of panicle | Smooth panicles | Smooth panicles |
| Flowering | Intermediate to late (protracted) | Early to intermediate | Early to intermediate |
| Internode Color | Golden | Green | Green |
Traits conferring phenotypic identity to novel weedy rice and co-occurring cultivated rice ecotypes in California. This phenotype summary is generated from the comparison of morphogroups based on principal components analysis, hierarchical clustering, and multivariate analysis of variance.