1915 |
Viola 'Bowles' Black' |
dark purple-black 15cm 21 |
G |
1916 |
Viola corsica |
violet-purple 15-20cm 47 136 |
G |
1917 |
Viola glacialis |
blue 4cm 16 |
G |
1918 |
Viola nuttallii |
yellow 2-27cm 147 |
G |
1919 |
Viola portalesia |
blue 30cm 16 |
G |
1920 |
Wurmbea stricta |
white-pale pink to 60cm 12 |
G |
3336 |
Wyethia amplexicaulis |
yellow 25-50cm Washington: E Cascade Foothills, Yakima Co 1155m 160 |
W |
1921 |
Wyethia angustifolia |
yellow 15-60cm 69 |
G |
3337 |
Wyethia mollis |
yellow to 80cm California: Madera Co 1220m 80 |
W |
1922 |
Xanthisma (Aster) coloradoense |
pink-purple 2.5-14cm 7 46 |
G |
1923 |
Xeronema callistemon |
red 45-100cm 128 |
G |
1924 |
Yucca baccata |
cream to 2m 156 |
G |
3338 |
Yucca harrimaniae |
cream 200cm Colorado: Mesa Co 74 |
W |
1925 |
Yucca hybrid |
white 200cm 105 |
G |
1926 |
Yucca pallida |
greenish white 20-50cm/70-120cm flr 156 |
G |
1927 |
Yucca rostrata |
white flr/blue-grey lvs 2.5-3.6m 169 |
G |
1928 |
Zantedeschia albomaculata |
white/unspotted lvs form to 70cm 158 |
G |
1929 |
Zephyranthes brachyandra |
pink/dark purple throat to 30cm 51 |
G |
1930 |
Zephyranthes drummondii |
white 16-45cm 44 134 |
G |
1931 |
Zephyranthes katheriniae |
yellow/red 20-35cm 44 |
G |
1932 |
Zephyranthes lindleyana |
pale pink/yellow 5-15cm 44 |
G |
1933 |
Zephyranthes macrosiphon Hidalgo Form |
deep pink 25cm 27 |
G |
1934 |
Zephyranthes morrisclintii |
pink 25cm 44 |
G |
1935 |
Zephyranthes robusta |
lavender-pale pink 15-40cm 133 |
G |
1936 |
Zephyranthes sp |
pink 49 |
G |
1937 |
Zephyranthes tubispatha |
yellow/copper reverse 10-20cm 13 44 |
G |
1938 |
Zephyranthes tubispatha (texana form) |
yellow 15-30cm 132 |
G |
1939 |
Zinnia elegans |
double lime-green 90cm 36 |
G |
1940 |
Zinnia grandiflora |
yellow 8-22cm 62 90 |
G |
1941 |
Zizia aptera |
yellow 30-90cm 3 |
G |
1942 |
Zizia aurea |
yellow 40-75cm 79 |
G |