[RUNTIME] Corpse Flower mutation from Star Thistle throws error

[MonkestationIssueBot]

Reporting client info: Client Information:
BYOND:515.1630
Key:dexee

Round ID:

3468

Testmerges:

• Behold, a Box!
• Serverlink implant + traitor variant!
• new server new me
• Job rewards (should) now work properly
• [PORT] Now blocking is more noticeable! New blocking and parrying sounds
• Adds Cortical borers, in their full worm glory
• [PORT] Adds More Quirks!
• Mining RND #4 - Proto-Kinetic SMG
• Metric assload of issue fixes
• Ports Microfusion Energy Guns

Reproduction:

[11:54:33] Runtime in code/modules/hydroponics/seeds.dm, line 307: undefined variable /obj/item/seeds/starthistle/corpse_flower/var/seed
proc name: harvest (/obj/item/seeds/proc/harvest)
usr: Cool shrimp/(Tato Gath)
usr.loc: (Hydroponics (131,110,2))
src: the pack of starthistle seeds (/obj/item/seeds/starthistle)
src.loc: the hydroponics tray (/obj/machinery/hydroponics/constructable)
call stack:
the pack of starthistle seeds (/obj/item/seeds/starthistle): harvest(Tato Gath (/mob/living/carbon/human))
the hydroponics tray (/obj/machinery/hydroponics/constructable): attack hand(Tato Gath (/mob/living/carbon/human), null)
the hydroponics tray (/obj/machinery/hydroponics/constructable): attackby(the portable seed extractor (/obj/item/storage/bag/plants/portaseeder), Tato Gath (/mob/living/carbon/human), "icon-x=14;icon-y=8;left=1;butt...")
the hydroponics tray (/obj/machinery/hydroponics/constructable): attackby(the portable seed extractor (/obj/item/storage/bag/plants/portaseeder), Tato Gath (/mob/living/carbon/human), "icon-x=14;icon-y=8;left=1;butt...")
the portable seed extractor (/obj/item/storage/bag/plants/portaseeder): melee attack chain(Tato Gath (/mob/living/carbon/human), the hydroponics tray (/obj/machinery/hydroponics/constructable), "icon-x=14;icon-y=8;left=1;butt...")
Tato Gath (/mob/living/carbon/human): ClickOn(the hydroponics tray (/obj/machinery/hydroponics/constructable), "icon-x=14;icon-y=8;left=1;butt...")
the hydroponics tray (/obj/machinery/hydroponics/constructable): Click(the floor (132,109,2) (/turf/open/floor/iron), "mapwindow.map", "icon-x=14;icon-y=8;left=1;butt...")
Cool shrimp (/client): Click(the hydroponics tray (/obj/machinery/hydroponics/constructable), the floor (132,109,2) (/turf/open/floor/iron), "mapwindow.map", "icon-x=14;icon-y=8;left=1;butt...")