I love love love Cypress as a name. I feel like most favorites that come to mind are more out there than Lily but less than the ones on your list. Senna, Linden, Aster, Cassia, Marigold, nameberry fave Linnea, etc.
Other names that come to mind that are more on the eccentric side than my go-to nature name ideas:
Lake
Sorrel
Anise
Skylark
Meadow
Meadowlark
Acacia
Sequoia
Daylight
Calendula
Moss
Grove
Cove
Rye
I am having issues with this and it keeps accidentally posting, so I’ll end my list here, but I am excited to see what people come up with!